Home / 1,625.28-2,242.56-1,127.76

Finding the Fourth Proportional to 1,625.28, 2,242.56 and 1,127.76

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Solution

The fourth proportional to 1,625.28, 2,242.56 and 1,127.76 is: 1,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.28 : 2,242.56 = 1,127.76 : x
  2. Step 2: Convert to fraction form
    1,625.28/2,242.56 = 1,127.76/x
  3. Step 3: Cross multiply
    1,625.28x = 2,242.56 × 1,127.76
  4. Step 4: Simplify right side
    1,625.28x = 2,529,069.47
  5. Step 5: Solve for x
    x = 2,529,069.47/1,625.28
  6. Step 6: Final answer
    x = 1,556.08

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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.