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Finding the Fourth Proportional to 1,761.11, 2,430.03 and 1,015.10

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Solution

The fourth proportional to 1,761.11, 2,430.03 and 1,015.10 is: 1,400.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.11 : 2,430.03 = 1,015.10 : x
  2. Step 2: Convert to fraction form
    1,761.11/2,430.03 = 1,015.10/x
  3. Step 3: Cross multiply
    1,761.11x = 2,430.03 × 1,015.10
  4. Step 4: Simplify right side
    1,761.11x = 2,466,723.45
  5. Step 5: Solve for x
    x = 2,466,723.45/1,761.11
  6. Step 6: Final answer
    x = 1,400.66

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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.