Home / 10,426.40-15,640.59-2,929.94

Finding the Fourth Proportional to 10,426.40, 15,640.59 and 2,929.94

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Solution

The fourth proportional to 10,426.40, 15,640.59 and 2,929.94 is: 4,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426.40 : 15,640.59 = 2,929.94 : x
  2. Step 2: Convert to fraction form
    10,426.40/15,640.59 = 2,929.94/x
  3. Step 3: Cross multiply
    10,426.40x = 15,640.59 × 2,929.94
  4. Step 4: Simplify right side
    10,426.40x = 45,825,990.26
  5. Step 5: Solve for x
    x = 45,825,990.26/10,426.40
  6. Step 6: Final answer
    x = 4,395.19

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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.