Home / 1,442.32-2,158.86-1,151.32

Finding the Fourth Proportional to 1,442.32, 2,158.86 and 1,151.32

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Solution

The fourth proportional to 1,442.32, 2,158.86 and 1,151.32 is: 1,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.32 : 2,158.86 = 1,151.32 : x
  2. Step 2: Convert to fraction form
    1,442.32/2,158.86 = 1,151.32/x
  3. Step 3: Cross multiply
    1,442.32x = 2,158.86 × 1,151.32
  4. Step 4: Simplify right side
    1,442.32x = 2,485,538.70
  5. Step 5: Solve for x
    x = 2,485,538.70/1,442.32
  6. Step 6: Final answer
    x = 1,723.29

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1.5x scale

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.