Home / 5,248.23-7,242.56-2,890.37

Finding the Fourth Proportional to 5,248.23, 7,242.56 and 2,890.37

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Solution

The fourth proportional to 5,248.23, 7,242.56 and 2,890.37 is: 3,988.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.23 : 7,242.56 = 2,890.37 : x
  2. Step 2: Convert to fraction form
    5,248.23/7,242.56 = 2,890.37/x
  3. Step 3: Cross multiply
    5,248.23x = 7,242.56 × 2,890.37
  4. Step 4: Simplify right side
    5,248.23x = 20,933,680.42
  5. Step 5: Solve for x
    x = 20,933,680.42/5,248.23
  6. Step 6: Final answer
    x = 3,988.71

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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.