Home / 1,127.26-1,555.50-655.07

Finding the Fourth Proportional to 1,127.26, 1,555.50 and 655.07

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Solution

The fourth proportional to 1,127.26, 1,555.50 and 655.07 is: 903.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127.26 : 1,555.50 = 655.07 : x
  2. Step 2: Convert to fraction form
    1,127.26/1,555.50 = 655.07/x
  3. Step 3: Cross multiply
    1,127.26x = 1,555.50 × 655.07
  4. Step 4: Simplify right side
    1,127.26x = 1,018,953.61
  5. Step 5: Solve for x
    x = 1,018,953.61/1,127.26
  6. Step 6: Final answer
    x = 903.92

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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.