Home / 1,672.12-2,307.91-1,042.53

Finding the Fourth Proportional to 1,672.12, 2,307.91 and 1,042.53

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Solution

The fourth proportional to 1,672.12, 2,307.91 and 1,042.53 is: 1,438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.12 : 2,307.91 = 1,042.53 : x
  2. Step 2: Convert to fraction form
    1,672.12/2,307.91 = 1,042.53/x
  3. Step 3: Cross multiply
    1,672.12x = 2,307.91 × 1,042.53
  4. Step 4: Simplify right side
    1,672.12x = 2,406,048.66
  5. Step 5: Solve for x
    x = 2,406,048.66/1,672.12
  6. Step 6: Final answer
    x = 1,438.92

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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.