Home / 5,430.68-8,141.16-2,146.16

Finding the Fourth Proportional to 5,430.68, 8,141.16 and 2,146.16

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Solution

The fourth proportional to 5,430.68, 8,141.16 and 2,146.16 is: 3,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.68 : 8,141.16 = 2,146.16 : x
  2. Step 2: Convert to fraction form
    5,430.68/8,141.16 = 2,146.16/x
  3. Step 3: Cross multiply
    5,430.68x = 8,141.16 × 2,146.16
  4. Step 4: Simplify right side
    5,430.68x = 17,472,231.95
  5. Step 5: Solve for x
    x = 17,472,231.95/5,430.68
  6. Step 6: Final answer
    x = 3,217.32

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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.