Home / 2,224.32-3,070.88-1,397.44

Finding the Fourth Proportional to 2,224.32, 3,070.88 and 1,397.44

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Solution

The fourth proportional to 2,224.32, 3,070.88 and 1,397.44 is: 1,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.32 : 3,070.88 = 1,397.44 : x
  2. Step 2: Convert to fraction form
    2,224.32/3,070.88 = 1,397.44/x
  3. Step 3: Cross multiply
    2,224.32x = 3,070.88 × 1,397.44
  4. Step 4: Simplify right side
    2,224.32x = 4,291,370.55
  5. Step 5: Solve for x
    x = 4,291,370.55/2,224.32
  6. Step 6: Final answer
    x = 1,929.30

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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.