Home / 1,529.10-2,110.20-865.92

Finding the Fourth Proportional to 1,529.10, 2,110.20 and 865.92

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Solution

The fourth proportional to 1,529.10, 2,110.20 and 865.92 is: 1,194.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.10 : 2,110.20 = 865.92 : x
  2. Step 2: Convert to fraction form
    1,529.10/2,110.20 = 865.92/x
  3. Step 3: Cross multiply
    1,529.10x = 2,110.20 × 865.92
  4. Step 4: Simplify right side
    1,529.10x = 1,827,264.38
  5. Step 5: Solve for x
    x = 1,827,264.38/1,529.10
  6. Step 6: Final answer
    x = 1,194.99

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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.