Home / 1,557.30-2,149.02-849.18

Finding the Fourth Proportional to 1,557.30, 2,149.02 and 849.18

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Solution

The fourth proportional to 1,557.30, 2,149.02 and 849.18 is: 1,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.30 : 2,149.02 = 849.18 : x
  2. Step 2: Convert to fraction form
    1,557.30/2,149.02 = 849.18/x
  3. Step 3: Cross multiply
    1,557.30x = 2,149.02 × 849.18
  4. Step 4: Simplify right side
    1,557.30x = 1,824,904.80
  5. Step 5: Solve for x
    x = 1,824,904.80/1,557.30
  6. Step 6: Final answer
    x = 1,171.84

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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.