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Finding the Fourth Proportional to 4,951.96, 7,419.04 and 2,870.20

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Solution

The fourth proportional to 4,951.96, 7,419.04 and 2,870.20 is: 4,300.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.96 : 7,419.04 = 2,870.20 : x
  2. Step 2: Convert to fraction form
    4,951.96/7,419.04 = 2,870.20/x
  3. Step 3: Cross multiply
    4,951.96x = 7,419.04 × 2,870.20
  4. Step 4: Simplify right side
    4,951.96x = 21,294,128.61
  5. Step 5: Solve for x
    x = 21,294,128.61/4,951.96
  6. Step 6: Final answer
    x = 4,300.14

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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.