Home / 5,429.33-8,139.10-1,917.24

Finding the Fourth Proportional to 5,429.33, 8,139.10 and 1,917.24

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Solution

The fourth proportional to 5,429.33, 8,139.10 and 1,917.24 is: 2,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.33 : 8,139.10 = 1,917.24 : x
  2. Step 2: Convert to fraction form
    5,429.33/8,139.10 = 1,917.24/x
  3. Step 3: Cross multiply
    5,429.33x = 8,139.10 × 1,917.24
  4. Step 4: Simplify right side
    5,429.33x = 15,604,608.08
  5. Step 5: Solve for x
    x = 15,604,608.08/5,429.33
  6. Step 6: Final answer
    x = 2,874.13

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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.