Home / 1,901.32-2,623.80-1,115.44

Finding the Fourth Proportional to 1,901.32, 2,623.80 and 1,115.44

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Solution

The fourth proportional to 1,901.32, 2,623.80 and 1,115.44 is: 1,539.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.32 : 2,623.80 = 1,115.44 : x
  2. Step 2: Convert to fraction form
    1,901.32/2,623.80 = 1,115.44/x
  3. Step 3: Cross multiply
    1,901.32x = 2,623.80 × 1,115.44
  4. Step 4: Simplify right side
    1,901.32x = 2,926,691.47
  5. Step 5: Solve for x
    x = 2,926,691.47/1,901.32
  6. Step 6: Final answer
    x = 1,539.29

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1.5x scale

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.