Home / 1,915.29-2,873.31-1,049.40

Finding the Fourth Proportional to 1,915.29, 2,873.31 and 1,049.40

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Solution

The fourth proportional to 1,915.29, 2,873.31 and 1,049.40 is: 1,574.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.29 : 2,873.31 = 1,049.40 : x
  2. Step 2: Convert to fraction form
    1,915.29/2,873.31 = 1,049.40/x
  3. Step 3: Cross multiply
    1,915.29x = 2,873.31 × 1,049.40
  4. Step 4: Simplify right side
    1,915.29x = 3,015,251.51
  5. Step 5: Solve for x
    x = 3,015,251.51/1,915.29
  6. Step 6: Final answer
    x = 1,574.31

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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.