Home / 4,139.25-6,209.18-1,542.20

Finding the Fourth Proportional to 4,139.25, 6,209.18 and 1,542.20

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Solution

The fourth proportional to 4,139.25, 6,209.18 and 1,542.20 is: 2,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.25 : 6,209.18 = 1,542.20 : x
  2. Step 2: Convert to fraction form
    4,139.25/6,209.18 = 1,542.20/x
  3. Step 3: Cross multiply
    4,139.25x = 6,209.18 × 1,542.20
  4. Step 4: Simplify right side
    4,139.25x = 9,575,758.64
  5. Step 5: Solve for x
    x = 9,575,758.64/4,139.25
  6. Step 6: Final answer
    x = 2,313.40

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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.