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Finding the Fourth Proportional to 5,290.24, 7,866.12 and 5,068.79

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Solution

The fourth proportional to 5,290.24, 7,866.12 and 5,068.79 is: 7,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.24 : 7,866.12 = 5,068.79 : x
  2. Step 2: Convert to fraction form
    5,290.24/7,866.12 = 5,068.79/x
  3. Step 3: Cross multiply
    5,290.24x = 7,866.12 × 5,068.79
  4. Step 4: Simplify right side
    5,290.24x = 39,871,685.05
  5. Step 5: Solve for x
    x = 39,871,685.05/5,290.24
  6. Step 6: Final answer
    x = 7,536.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.