Home / 1,442.07-2,158.62-1,320.93

Finding the Fourth Proportional to 1,442.07, 2,158.62 and 1,320.93

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Solution

The fourth proportional to 1,442.07, 2,158.62 and 1,320.93 is: 1,977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.07 : 2,158.62 = 1,320.93 : x
  2. Step 2: Convert to fraction form
    1,442.07/2,158.62 = 1,320.93/x
  3. Step 3: Cross multiply
    1,442.07x = 2,158.62 × 1,320.93
  4. Step 4: Simplify right side
    1,442.07x = 2,851,385.92
  5. Step 5: Solve for x
    x = 2,851,385.92/1,442.07
  6. Step 6: Final answer
    x = 1,977.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.