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Finding the Fourth Proportional to 2,754.60, 4,130.07 and 999.38

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Solution

The fourth proportional to 2,754.60, 4,130.07 and 999.38 is: 1,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754.60 : 4,130.07 = 999.38 : x
  2. Step 2: Convert to fraction form
    2,754.60/4,130.07 = 999.38/x
  3. Step 3: Cross multiply
    2,754.60x = 4,130.07 × 999.38
  4. Step 4: Simplify right side
    2,754.60x = 4,127,505.11
  5. Step 5: Solve for x
    x = 4,127,505.11/2,754.60
  6. Step 6: Final answer
    x = 1,498.40

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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.