Home / 1,040.26-1,560.30-346.90

Finding the Fourth Proportional to 1,040.26, 1,560.30 and 346.90

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Solution

The fourth proportional to 1,040.26, 1,560.30 and 346.90 is: 520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.26 : 1,560.30 = 346.90 : x
  2. Step 2: Convert to fraction form
    1,040.26/1,560.30 = 346.90/x
  3. Step 3: Cross multiply
    1,040.26x = 1,560.30 × 346.90
  4. Step 4: Simplify right side
    1,040.26x = 541,268.07
  5. Step 5: Solve for x
    x = 541,268.07/1,040.26
  6. Step 6: Final answer
    x = 520.32

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Double scale
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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.