Home / 3,142.26-4,337.07-1,815.75

Finding the Fourth Proportional to 3,142.26, 4,337.07 and 1,815.75

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Solution

The fourth proportional to 3,142.26, 4,337.07 and 1,815.75 is: 2,506.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.26 : 4,337.07 = 1,815.75 : x
  2. Step 2: Convert to fraction form
    3,142.26/4,337.07 = 1,815.75/x
  3. Step 3: Cross multiply
    3,142.26x = 4,337.07 × 1,815.75
  4. Step 4: Simplify right side
    3,142.26x = 7,875,034.85
  5. Step 5: Solve for x
    x = 7,875,034.85/3,142.26
  6. Step 6: Final answer
    x = 2,506.17

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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.