Home / 1,556.88-2,147.22-1,136.76

Finding the Fourth Proportional to 1,556.88, 2,147.22 and 1,136.76

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Solution

The fourth proportional to 1,556.88, 2,147.22 and 1,136.76 is: 1,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.88 : 2,147.22 = 1,136.76 : x
  2. Step 2: Convert to fraction form
    1,556.88/2,147.22 = 1,136.76/x
  3. Step 3: Cross multiply
    1,556.88x = 2,147.22 × 1,136.76
  4. Step 4: Simplify right side
    1,556.88x = 2,440,873.81
  5. Step 5: Solve for x
    x = 2,440,873.81/1,556.88
  6. Step 6: Final answer
    x = 1,567.80

Related Problems

Find fourth proportional to 778.44, 1,073.61 and 568.38
Half scale
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Double scale
Find fourth proportional to 1,557.88, 2,148.60 and 1,137.76
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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.