Home / 5,455.90-8,167.65-4,872.70

Finding the Fourth Proportional to 5,455.90, 8,167.65 and 4,872.70

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Solution

The fourth proportional to 5,455.90, 8,167.65 and 4,872.70 is: 7,294.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.90 : 8,167.65 = 4,872.70 : x
  2. Step 2: Convert to fraction form
    5,455.90/8,167.65 = 4,872.70/x
  3. Step 3: Cross multiply
    5,455.90x = 8,167.65 × 4,872.70
  4. Step 4: Simplify right side
    5,455.90x = 39,798,508.16
  5. Step 5: Solve for x
    x = 39,798,508.16/5,455.90
  6. Step 6: Final answer
    x = 7,294.58

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1.5x scale

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.