Home / 1,557.17-2,332.02-905.93

Finding the Fourth Proportional to 1,557.17, 2,332.02 and 905.93

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Solution

The fourth proportional to 1,557.17, 2,332.02 and 905.93 is: 1,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.17 : 2,332.02 = 905.93 : x
  2. Step 2: Convert to fraction form
    1,557.17/2,332.02 = 905.93/x
  3. Step 3: Cross multiply
    1,557.17x = 2,332.02 × 905.93
  4. Step 4: Simplify right side
    1,557.17x = 2,112,646.88
  5. Step 5: Solve for x
    x = 2,112,646.88/1,557.17
  6. Step 6: Final answer
    x = 1,356.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.