Home / 1,959.40-2,941.16-1,915.32

Finding the Fourth Proportional to 1,959.40, 2,941.16 and 1,915.32

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Solution

The fourth proportional to 1,959.40, 2,941.16 and 1,915.32 is: 2,874.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.40 : 2,941.16 = 1,915.32 : x
  2. Step 2: Convert to fraction form
    1,959.40/2,941.16 = 1,915.32/x
  3. Step 3: Cross multiply
    1,959.40x = 2,941.16 × 1,915.32
  4. Step 4: Simplify right side
    1,959.40x = 5,633,262.57
  5. Step 5: Solve for x
    x = 5,633,262.57/1,959.40
  6. Step 6: Final answer
    x = 2,874.99

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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.