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Finding the Fourth Proportional to 1,500.03, 2,070.02 and 836.88

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Solution

The fourth proportional to 1,500.03, 2,070.02 and 836.88 is: 1,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500.03 : 2,070.02 = 836.88 : x
  2. Step 2: Convert to fraction form
    1,500.03/2,070.02 = 836.88/x
  3. Step 3: Cross multiply
    1,500.03x = 2,070.02 × 836.88
  4. Step 4: Simplify right side
    1,500.03x = 1,732,354.15
  5. Step 5: Solve for x
    x = 1,732,354.15/1,500.03
  6. Step 6: Final answer
    x = 1,154.88

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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.