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Finding the Fourth Proportional to 1,345.20, 2,013.48 and 695.04

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Solution

The fourth proportional to 1,345.20, 2,013.48 and 695.04 is: 1,040.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.20 : 2,013.48 = 695.04 : x
  2. Step 2: Convert to fraction form
    1,345.20/2,013.48 = 695.04/x
  3. Step 3: Cross multiply
    1,345.20x = 2,013.48 × 695.04
  4. Step 4: Simplify right side
    1,345.20x = 1,399,449.14
  5. Step 5: Solve for x
    x = 1,399,449.14/1,345.20
  6. Step 6: Final answer
    x = 1,040.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.