Home / 1,539.26-2,124.18-876.16

Finding the Fourth Proportional to 1,539.26, 2,124.18 and 876.16

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Solution

The fourth proportional to 1,539.26, 2,124.18 and 876.16 is: 1,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.26 : 2,124.18 = 876.16 : x
  2. Step 2: Convert to fraction form
    1,539.26/2,124.18 = 876.16/x
  3. Step 3: Cross multiply
    1,539.26x = 2,124.18 × 876.16
  4. Step 4: Simplify right side
    1,539.26x = 1,861,110.93
  5. Step 5: Solve for x
    x = 1,861,110.93/1,539.26
  6. Step 6: Final answer
    x = 1,209.10

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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.