Home / 5,372.16-8,050.95-3,990.71

Finding the Fourth Proportional to 5,372.16, 8,050.95 and 3,990.71

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Solution

The fourth proportional to 5,372.16, 8,050.95 and 3,990.71 is: 5,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.16 : 8,050.95 = 3,990.71 : x
  2. Step 2: Convert to fraction form
    5,372.16/8,050.95 = 3,990.71/x
  3. Step 3: Cross multiply
    5,372.16x = 8,050.95 × 3,990.71
  4. Step 4: Simplify right side
    5,372.16x = 32,128,966.42
  5. Step 5: Solve for x
    x = 32,128,966.42/5,372.16
  6. Step 6: Final answer
    x = 5,980.64

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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.