Home / 1,865.60-2,574.84-1,080.11

Finding the Fourth Proportional to 1,865.60, 2,574.84 and 1,080.11

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Solution

The fourth proportional to 1,865.60, 2,574.84 and 1,080.11 is: 1,490.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.60 : 2,574.84 = 1,080.11 : x
  2. Step 2: Convert to fraction form
    1,865.60/2,574.84 = 1,080.11/x
  3. Step 3: Cross multiply
    1,865.60x = 2,574.84 × 1,080.11
  4. Step 4: Simplify right side
    1,865.60x = 2,781,097.56
  5. Step 5: Solve for x
    x = 2,781,097.56/1,865.60
  6. Step 6: Final answer
    x = 1,490.73

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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.