Home / 2,224.30-3,068.78-1,439.02

Finding the Fourth Proportional to 2,224.30, 3,068.78 and 1,439.02

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Solution

The fourth proportional to 2,224.30, 3,068.78 and 1,439.02 is: 1,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.30 : 3,068.78 = 1,439.02 : x
  2. Step 2: Convert to fraction form
    2,224.30/3,068.78 = 1,439.02/x
  3. Step 3: Cross multiply
    2,224.30x = 3,068.78 × 1,439.02
  4. Step 4: Simplify right side
    2,224.30x = 4,416,035.80
  5. Step 5: Solve for x
    x = 4,416,035.80/2,224.30
  6. Step 6: Final answer
    x = 1,985.36

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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.