Home / 5,187.38-7,158.58-2,829.57

Finding the Fourth Proportional to 5,187.38, 7,158.58 and 2,829.57

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Solution

The fourth proportional to 5,187.38, 7,158.58 and 2,829.57 is: 3,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.38 : 7,158.58 = 2,829.57 : x
  2. Step 2: Convert to fraction form
    5,187.38/7,158.58 = 2,829.57/x
  3. Step 3: Cross multiply
    5,187.38x = 7,158.58 × 2,829.57
  4. Step 4: Simplify right side
    5,187.38x = 20,255,669.29
  5. Step 5: Solve for x
    x = 20,255,669.29/5,187.38
  6. Step 6: Final answer
    x = 3,904.80

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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.