Home / 5,915.11-8,878.80-4,356.86

Finding the Fourth Proportional to 5,915.11, 8,878.80 and 4,356.86

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Solution

The fourth proportional to 5,915.11, 8,878.80 and 4,356.86 is: 6,539.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.11 : 8,878.80 = 4,356.86 : x
  2. Step 2: Convert to fraction form
    5,915.11/8,878.80 = 4,356.86/x
  3. Step 3: Cross multiply
    5,915.11x = 8,878.80 × 4,356.86
  4. Step 4: Simplify right side
    5,915.11x = 38,683,688.57
  5. Step 5: Solve for x
    x = 38,683,688.57/5,915.11
  6. Step 6: Final answer
    x = 6,539.81

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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.