Home / 3,461.18-5,191.76-864.12

Finding the Fourth Proportional to 3,461.18, 5,191.76 and 864.12

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Solution

The fourth proportional to 3,461.18, 5,191.76 and 864.12 is: 1,296.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,461.18 : 5,191.76 = 864.12 : x
  2. Step 2: Convert to fraction form
    3,461.18/5,191.76 = 864.12/x
  3. Step 3: Cross multiply
    3,461.18x = 5,191.76 × 864.12
  4. Step 4: Simplify right side
    3,461.18x = 4,486,305.81
  5. Step 5: Solve for x
    x = 4,486,305.81/3,461.18
  6. Step 6: Final answer
    x = 1,296.18

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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.