Home / 1,072.17-1,475.82-1,030.66

Finding the Fourth Proportional to 1,072.17, 1,475.82 and 1,030.66

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Solution

The fourth proportional to 1,072.17, 1,475.82 and 1,030.66 is: 1,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072.17 : 1,475.82 = 1,030.66 : x
  2. Step 2: Convert to fraction form
    1,072.17/1,475.82 = 1,030.66/x
  3. Step 3: Cross multiply
    1,072.17x = 1,475.82 × 1,030.66
  4. Step 4: Simplify right side
    1,072.17x = 1,521,064.95
  5. Step 5: Solve for x
    x = 1,521,064.95/1,072.17
  6. Step 6: Final answer
    x = 1,418.68

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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.