Home / 2,929.86-4,390.13-2,379.35

Finding the Fourth Proportional to 2,929.86, 4,390.13 and 2,379.35

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Solution

The fourth proportional to 2,929.86, 4,390.13 and 2,379.35 is: 3,565.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.86 : 4,390.13 = 2,379.35 : x
  2. Step 2: Convert to fraction form
    2,929.86/4,390.13 = 2,379.35/x
  3. Step 3: Cross multiply
    2,929.86x = 4,390.13 × 2,379.35
  4. Step 4: Simplify right side
    2,929.86x = 10,445,621.97
  5. Step 5: Solve for x
    x = 10,445,621.97/2,929.86
  6. Step 6: Final answer
    x = 3,565.23

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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.