Home / 5,610.40-8,412.84-3,271.20

Finding the Fourth Proportional to 5,610.40, 8,412.84 and 3,271.20

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Solution

The fourth proportional to 5,610.40, 8,412.84 and 3,271.20 is: 4,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610.40 : 8,412.84 = 3,271.20 : x
  2. Step 2: Convert to fraction form
    5,610.40/8,412.84 = 3,271.20/x
  3. Step 3: Cross multiply
    5,610.40x = 8,412.84 × 3,271.20
  4. Step 4: Simplify right side
    5,610.40x = 27,520,082.21
  5. Step 5: Solve for x
    x = 27,520,082.21/5,610.40
  6. Step 6: Final answer
    x = 4,905.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.