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Finding the Fourth Proportional to 2,000.13, 3,000.16 and 903.72

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Solution

The fourth proportional to 2,000.13, 3,000.16 and 903.72 is: 1,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,000.13 : 3,000.16 = 903.72 : x
  2. Step 2: Convert to fraction form
    2,000.13/3,000.16 = 903.72/x
  3. Step 3: Cross multiply
    2,000.13x = 3,000.16 × 903.72
  4. Step 4: Simplify right side
    2,000.13x = 2,711,316.98
  5. Step 5: Solve for x
    x = 2,711,316.98/2,000.13
  6. Step 6: Final answer
    x = 1,355.57

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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.