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Finding the Fourth Proportional to 7,260.80, 10,019.82 and 4,117.10

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Solution

The fourth proportional to 7,260.80, 10,019.82 and 4,117.10 is: 5,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,260.80 : 10,019.82 = 4,117.10 : x
  2. Step 2: Convert to fraction form
    7,260.80/10,019.82 = 4,117.10/x
  3. Step 3: Cross multiply
    7,260.80x = 10,019.82 × 4,117.10
  4. Step 4: Simplify right side
    7,260.80x = 41,252,600.92
  5. Step 5: Solve for x
    x = 41,252,600.92/7,260.80
  6. Step 6: Final answer
    x = 5,681.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.