Home / 1,046.19-1,568.77-315.57

Finding the Fourth Proportional to 1,046.19, 1,568.77 and 315.57

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Solution

The fourth proportional to 1,046.19, 1,568.77 and 315.57 is: 473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.19 : 1,568.77 = 315.57 : x
  2. Step 2: Convert to fraction form
    1,046.19/1,568.77 = 315.57/x
  3. Step 3: Cross multiply
    1,046.19x = 1,568.77 × 315.57
  4. Step 4: Simplify right side
    1,046.19x = 495,056.75
  5. Step 5: Solve for x
    x = 495,056.75/1,046.19
  6. Step 6: Final answer
    x = 473.20

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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.