Home / 2,871.43-4,307.15-1,572.19

Finding the Fourth Proportional to 2,871.43, 4,307.15 and 1,572.19

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Solution

The fourth proportional to 2,871.43, 4,307.15 and 1,572.19 is: 2,358.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.43 : 4,307.15 = 1,572.19 : x
  2. Step 2: Convert to fraction form
    2,871.43/4,307.15 = 1,572.19/x
  3. Step 3: Cross multiply
    2,871.43x = 4,307.15 × 1,572.19
  4. Step 4: Simplify right side
    2,871.43x = 6,771,658.16
  5. Step 5: Solve for x
    x = 6,771,658.16/2,871.43
  6. Step 6: Final answer
    x = 2,358.29

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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.