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Finding the Fourth Proportional to 3,088.80, 4,636.80 and 1,627.20

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Solution

The fourth proportional to 3,088.80, 4,636.80 and 1,627.20 is: 2,442.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,088.80 : 4,636.80 = 1,627.20 : x
  2. Step 2: Convert to fraction form
    3,088.80/4,636.80 = 1,627.20/x
  3. Step 3: Cross multiply
    3,088.80x = 4,636.80 × 1,627.20
  4. Step 4: Simplify right side
    3,088.80x = 7,545,000.96
  5. Step 5: Solve for x
    x = 7,545,000.96/3,088.80
  6. Step 6: Final answer
    x = 2,442.70

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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.