Home / 4,246.38-5,862.87-3,128.58

Finding the Fourth Proportional to 4,246.38, 5,862.87 and 3,128.58

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Solution

The fourth proportional to 4,246.38, 5,862.87 and 3,128.58 is: 4,319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,246.38 : 5,862.87 = 3,128.58 : x
  2. Step 2: Convert to fraction form
    4,246.38/5,862.87 = 3,128.58/x
  3. Step 3: Cross multiply
    4,246.38x = 5,862.87 × 3,128.58
  4. Step 4: Simplify right side
    4,246.38x = 18,342,457.82
  5. Step 5: Solve for x
    x = 18,342,457.82/4,246.38
  6. Step 6: Final answer
    x = 4,319.55

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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.