Home / 1,873.31-2,585.01-1,087.20

Finding the Fourth Proportional to 1,873.31, 2,585.01 and 1,087.20

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Solution

The fourth proportional to 1,873.31, 2,585.01 and 1,087.20 is: 1,500.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.31 : 2,585.01 = 1,087.20 : x
  2. Step 2: Convert to fraction form
    1,873.31/2,585.01 = 1,087.20/x
  3. Step 3: Cross multiply
    1,873.31x = 2,585.01 × 1,087.20
  4. Step 4: Simplify right side
    1,873.31x = 2,810,422.87
  5. Step 5: Solve for x
    x = 2,810,422.87/1,873.31
  6. Step 6: Final answer
    x = 1,500.25

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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.