Home / 5,388.60-7,436.12-3,030.90

Finding the Fourth Proportional to 5,388.60, 7,436.12 and 3,030.90

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Solution

The fourth proportional to 5,388.60, 7,436.12 and 3,030.90 is: 4,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.60 : 7,436.12 = 3,030.90 : x
  2. Step 2: Convert to fraction form
    5,388.60/7,436.12 = 3,030.90/x
  3. Step 3: Cross multiply
    5,388.60x = 7,436.12 × 3,030.90
  4. Step 4: Simplify right side
    5,388.60x = 22,538,136.11
  5. Step 5: Solve for x
    x = 22,538,136.11/5,388.60
  6. Step 6: Final answer
    x = 4,182.56

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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.