Home / 5,388.34-7,437.12-3,151.30

Finding the Fourth Proportional to 5,388.34, 7,437.12 and 3,151.30

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Solution

The fourth proportional to 5,388.34, 7,437.12 and 3,151.30 is: 4,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.34 : 7,437.12 = 3,151.30 : x
  2. Step 2: Convert to fraction form
    5,388.34/7,437.12 = 3,151.30/x
  3. Step 3: Cross multiply
    5,388.34x = 7,437.12 × 3,151.30
  4. Step 4: Simplify right side
    5,388.34x = 23,436,596.26
  5. Step 5: Solve for x
    x = 23,436,596.26/5,388.34
  6. Step 6: Final answer
    x = 4,349.50

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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.