Home / 5,248.32-7,242.44-2,890.42

Finding the Fourth Proportional to 5,248.32, 7,242.44 and 2,890.42

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Solution

The fourth proportional to 5,248.32, 7,242.44 and 2,890.42 is: 3,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.32 : 7,242.44 = 2,890.42 : x
  2. Step 2: Convert to fraction form
    5,248.32/7,242.44 = 2,890.42/x
  3. Step 3: Cross multiply
    5,248.32x = 7,242.44 × 2,890.42
  4. Step 4: Simplify right side
    5,248.32x = 20,933,693.42
  5. Step 5: Solve for x
    x = 20,933,693.42/5,248.32
  6. Step 6: Final answer
    x = 3,988.65

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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.