Home / 1,948.24-2,920.74-1,517.32

Finding the Fourth Proportional to 1,948.24, 2,920.74 and 1,517.32

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Solution

The fourth proportional to 1,948.24, 2,920.74 and 1,517.32 is: 2,274.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.24 : 2,920.74 = 1,517.32 : x
  2. Step 2: Convert to fraction form
    1,948.24/2,920.74 = 1,517.32/x
  3. Step 3: Cross multiply
    1,948.24x = 2,920.74 × 1,517.32
  4. Step 4: Simplify right side
    1,948.24x = 4,431,697.22
  5. Step 5: Solve for x
    x = 4,431,697.22/1,948.24
  6. Step 6: Final answer
    x = 2,274.72

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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.