Home / 5,323.12-7,338.60-4,487.20

Finding the Fourth Proportional to 5,323.12, 7,338.60 and 4,487.20

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Solution

The fourth proportional to 5,323.12, 7,338.60 and 4,487.20 is: 6,186.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323.12 : 7,338.60 = 4,487.20 : x
  2. Step 2: Convert to fraction form
    5,323.12/7,338.60 = 4,487.20/x
  3. Step 3: Cross multiply
    5,323.12x = 7,338.60 × 4,487.20
  4. Step 4: Simplify right side
    5,323.12x = 32,929,765.92
  5. Step 5: Solve for x
    x = 32,929,765.92/5,323.12
  6. Step 6: Final answer
    x = 6,186.18

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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.