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Finding the Fourth Proportional to 5,038.60, 7,560.60 and 2,117.20

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Solution

The fourth proportional to 5,038.60, 7,560.60 and 2,117.20 is: 3,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.60 : 7,560.60 = 2,117.20 : x
  2. Step 2: Convert to fraction form
    5,038.60/7,560.60 = 2,117.20/x
  3. Step 3: Cross multiply
    5,038.60x = 7,560.60 × 2,117.20
  4. Step 4: Simplify right side
    5,038.60x = 16,007,302.32
  5. Step 5: Solve for x
    x = 16,007,302.32/5,038.60
  6. Step 6: Final answer
    x = 3,176.93

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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.