Home / 1,451.97-2,165.76-1,320.75

Finding the Fourth Proportional to 1,451.97, 2,165.76 and 1,320.75

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Solution

The fourth proportional to 1,451.97, 2,165.76 and 1,320.75 is: 1,970.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.97 : 2,165.76 = 1,320.75 : x
  2. Step 2: Convert to fraction form
    1,451.97/2,165.76 = 1,320.75/x
  3. Step 3: Cross multiply
    1,451.97x = 2,165.76 × 1,320.75
  4. Step 4: Simplify right side
    1,451.97x = 2,860,427.52
  5. Step 5: Solve for x
    x = 2,860,427.52/1,451.97
  6. Step 6: Final answer
    x = 1,970.03

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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.