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Finding the Fourth Proportional to 2,101.08, 3,151.99 and 714.34

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Solution

The fourth proportional to 2,101.08, 3,151.99 and 714.34 is: 1,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.08 : 3,151.99 = 714.34 : x
  2. Step 2: Convert to fraction form
    2,101.08/3,151.99 = 714.34/x
  3. Step 3: Cross multiply
    2,101.08x = 3,151.99 × 714.34
  4. Step 4: Simplify right side
    2,101.08x = 2,251,598.26
  5. Step 5: Solve for x
    x = 2,251,598.26/2,101.08
  6. Step 6: Final answer
    x = 1,071.64

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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.