Home / 5,478.60-8,217.90-3,167.40

Finding the Fourth Proportional to 5,478.60, 8,217.90 and 3,167.40

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Solution

The fourth proportional to 5,478.60, 8,217.90 and 3,167.40 is: 4,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.60 : 8,217.90 = 3,167.40 : x
  2. Step 2: Convert to fraction form
    5,478.60/8,217.90 = 3,167.40/x
  3. Step 3: Cross multiply
    5,478.60x = 8,217.90 × 3,167.40
  4. Step 4: Simplify right side
    5,478.60x = 26,029,376.46
  5. Step 5: Solve for x
    x = 26,029,376.46/5,478.60
  6. Step 6: Final answer
    x = 4,751.10

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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.