Home / 6,387.12-8,811.93-3,734.16

Finding the Fourth Proportional to 6,387.12, 8,811.93 and 3,734.16

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Solution

The fourth proportional to 6,387.12, 8,811.93 and 3,734.16 is: 5,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.12 : 8,811.93 = 3,734.16 : x
  2. Step 2: Convert to fraction form
    6,387.12/8,811.93 = 3,734.16/x
  3. Step 3: Cross multiply
    6,387.12x = 8,811.93 × 3,734.16
  4. Step 4: Simplify right side
    6,387.12x = 32,905,156.53
  5. Step 5: Solve for x
    x = 32,905,156.53/6,387.12
  6. Step 6: Final answer
    x = 5,151.80

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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.