Home / 10,328.16-15,490.05-2,930.61

Finding the Fourth Proportional to 10,328.16, 15,490.05 and 2,930.61

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Solution

The fourth proportional to 10,328.16, 15,490.05 and 2,930.61 is: 4,395.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,328.16 : 15,490.05 = 2,930.61 : x
  2. Step 2: Convert to fraction form
    10,328.16/15,490.05 = 2,930.61/x
  3. Step 3: Cross multiply
    10,328.16x = 15,490.05 × 2,930.61
  4. Step 4: Simplify right side
    10,328.16x = 45,395,295.43
  5. Step 5: Solve for x
    x = 45,395,295.43/10,328.16
  6. Step 6: Final answer
    x = 4,395.29

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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.