Home / 5,248.20-7,242.48-2,890.32

Finding the Fourth Proportional to 5,248.20, 7,242.48 and 2,890.32

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Solution

The fourth proportional to 5,248.20, 7,242.48 and 2,890.32 is: 3,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.20 : 7,242.48 = 2,890.32 : x
  2. Step 2: Convert to fraction form
    5,248.20/7,242.48 = 2,890.32/x
  3. Step 3: Cross multiply
    5,248.20x = 7,242.48 × 2,890.32
  4. Step 4: Simplify right side
    5,248.20x = 20,933,084.79
  5. Step 5: Solve for x
    x = 20,933,084.79/5,248.20
  6. Step 6: Final answer
    x = 3,988.62

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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.