Home / 1,873.38-2,585.07-1,087.28

Finding the Fourth Proportional to 1,873.38, 2,585.07 and 1,087.28

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Solution

The fourth proportional to 1,873.38, 2,585.07 and 1,087.28 is: 1,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.38 : 2,585.07 = 1,087.28 : x
  2. Step 2: Convert to fraction form
    1,873.38/2,585.07 = 1,087.28/x
  3. Step 3: Cross multiply
    1,873.38x = 2,585.07 × 1,087.28
  4. Step 4: Simplify right side
    1,873.38x = 2,810,681.98
  5. Step 5: Solve for x
    x = 2,810,681.98/1,873.38
  6. Step 6: Final answer
    x = 1,500.33

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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.