Home / 5,470.32-8,207.40-3,415.92

Finding the Fourth Proportional to 5,470.32, 8,207.40 and 3,415.92

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Solution

The fourth proportional to 5,470.32, 8,207.40 and 3,415.92 is: 5,125.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.32 : 8,207.40 = 3,415.92 : x
  2. Step 2: Convert to fraction form
    5,470.32/8,207.40 = 3,415.92/x
  3. Step 3: Cross multiply
    5,470.32x = 8,207.40 × 3,415.92
  4. Step 4: Simplify right side
    5,470.32x = 28,035,821.81
  5. Step 5: Solve for x
    x = 28,035,821.81/5,470.32
  6. Step 6: Final answer
    x = 5,125.08

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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.