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Finding the Fourth Proportional to 1,655.86, 2,284.23 and 1,124.77

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Solution

The fourth proportional to 1,655.86, 2,284.23 and 1,124.77 is: 1,551.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.86 : 2,284.23 = 1,124.77 : x
  2. Step 2: Convert to fraction form
    1,655.86/2,284.23 = 1,124.77/x
  3. Step 3: Cross multiply
    1,655.86x = 2,284.23 × 1,124.77
  4. Step 4: Simplify right side
    1,655.86x = 2,569,233.38
  5. Step 5: Solve for x
    x = 2,569,233.38/1,655.86
  6. Step 6: Final answer
    x = 1,551.60

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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.