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Finding the Fourth Proportional to 1,556.88, 2,148.48 and 848.76

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Solution

The fourth proportional to 1,556.88, 2,148.48 and 848.76 is: 1,171.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.88 : 2,148.48 = 848.76 : x
  2. Step 2: Convert to fraction form
    1,556.88/2,148.48 = 848.76/x
  3. Step 3: Cross multiply
    1,556.88x = 2,148.48 × 848.76
  4. Step 4: Simplify right side
    1,556.88x = 1,823,543.88
  5. Step 5: Solve for x
    x = 1,823,543.88/1,556.88
  6. Step 6: Final answer
    x = 1,171.28

Related Problems

Find fourth proportional to 778.44, 1,074.24 and 424.38
Half scale
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Double scale
Find fourth proportional to 1,557.88, 2,149.86 and 849.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.