Home / 5,251.40-7,877.12-4,930.64

Finding the Fourth Proportional to 5,251.40, 7,877.12 and 4,930.64

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Solution

The fourth proportional to 5,251.40, 7,877.12 and 4,930.64 is: 7,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.40 : 7,877.12 = 4,930.64 : x
  2. Step 2: Convert to fraction form
    5,251.40/7,877.12 = 4,930.64/x
  3. Step 3: Cross multiply
    5,251.40x = 7,877.12 × 4,930.64
  4. Step 4: Simplify right side
    5,251.40x = 38,839,242.96
  5. Step 5: Solve for x
    x = 38,839,242.96/5,251.40
  6. Step 6: Final answer
    x = 7,395.98

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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.