Home / 2,871.49-4,307.90-1,022.71

Finding the Fourth Proportional to 2,871.49, 4,307.90 and 1,022.71

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Solution

The fourth proportional to 2,871.49, 4,307.90 and 1,022.71 is: 1,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.49 : 4,307.90 = 1,022.71 : x
  2. Step 2: Convert to fraction form
    2,871.49/4,307.90 = 1,022.71/x
  3. Step 3: Cross multiply
    2,871.49x = 4,307.90 × 1,022.71
  4. Step 4: Simplify right side
    2,871.49x = 4,405,727.30
  5. Step 5: Solve for x
    x = 4,405,727.30/2,871.49
  6. Step 6: Final answer
    x = 1,534.30

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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.