Home / 1,045.16-1,568.40-395.96

Finding the Fourth Proportional to 1,045.16, 1,568.40 and 395.96

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Solution

The fourth proportional to 1,045.16, 1,568.40 and 395.96 is: 594.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.16 : 1,568.40 = 395.96 : x
  2. Step 2: Convert to fraction form
    1,045.16/1,568.40 = 395.96/x
  3. Step 3: Cross multiply
    1,045.16x = 1,568.40 × 395.96
  4. Step 4: Simplify right side
    1,045.16x = 621,023.66
  5. Step 5: Solve for x
    x = 621,023.66/1,045.16
  6. Step 6: Final answer
    x = 594.19

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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.