Home / 3,380.64-5,068.76-1,407.62

Finding the Fourth Proportional to 3,380.64, 5,068.76 and 1,407.62

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Solution

The fourth proportional to 3,380.64, 5,068.76 and 1,407.62 is: 2,110.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.64 : 5,068.76 = 1,407.62 : x
  2. Step 2: Convert to fraction form
    3,380.64/5,068.76 = 1,407.62/x
  3. Step 3: Cross multiply
    3,380.64x = 5,068.76 × 1,407.62
  4. Step 4: Simplify right side
    3,380.64x = 7,134,887.95
  5. Step 5: Solve for x
    x = 7,134,887.95/3,380.64
  6. Step 6: Final answer
    x = 2,110.51

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1.5x scale

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.