Home / 1,415.44-2,113.62-1,155.95

Finding the Fourth Proportional to 1,415.44, 2,113.62 and 1,155.95

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Solution

The fourth proportional to 1,415.44, 2,113.62 and 1,155.95 is: 1,726.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.44 : 2,113.62 = 1,155.95 : x
  2. Step 2: Convert to fraction form
    1,415.44/2,113.62 = 1,155.95/x
  3. Step 3: Cross multiply
    1,415.44x = 2,113.62 × 1,155.95
  4. Step 4: Simplify right side
    1,415.44x = 2,443,239.04
  5. Step 5: Solve for x
    x = 2,443,239.04/1,415.44
  6. Step 6: Final answer
    x = 1,726.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.