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Finding the Fourth Proportional to 2,714.32, 4,069.46 and 1,070

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Solution

The fourth proportional to 2,714.32, 4,069.46 and 1,070 is: 1,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,714.32 : 4,069.46 = 1,070 : x
  2. Step 2: Convert to fraction form
    2,714.32/4,069.46 = 1,070/x
  3. Step 3: Cross multiply
    2,714.32x = 4,069.46 × 1,070
  4. Step 4: Simplify right side
    2,714.32x = 4,354,322.20
  5. Step 5: Solve for x
    x = 4,354,322.20/2,714.32
  6. Step 6: Final answer
    x = 1,604.20

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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.