Home / 2,915.36-4,024.04-1,781.44

Finding the Fourth Proportional to 2,915.36, 4,024.04 and 1,781.44

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Solution

The fourth proportional to 2,915.36, 4,024.04 and 1,781.44 is: 2,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.36 : 4,024.04 = 1,781.44 : x
  2. Step 2: Convert to fraction form
    2,915.36/4,024.04 = 1,781.44/x
  3. Step 3: Cross multiply
    2,915.36x = 4,024.04 × 1,781.44
  4. Step 4: Simplify right side
    2,915.36x = 7,168,585.82
  5. Step 5: Solve for x
    x = 7,168,585.82/2,915.36
  6. Step 6: Final answer
    x = 2,458.90

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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.