Home / 1,046.36-1,569.80-315.92

Finding the Fourth Proportional to 1,046.36, 1,569.80 and 315.92

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Solution

The fourth proportional to 1,046.36, 1,569.80 and 315.92 is: 473.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.36 : 1,569.80 = 315.92 : x
  2. Step 2: Convert to fraction form
    1,046.36/1,569.80 = 315.92/x
  3. Step 3: Cross multiply
    1,046.36x = 1,569.80 × 315.92
  4. Step 4: Simplify right side
    1,046.36x = 495,931.22
  5. Step 5: Solve for x
    x = 495,931.22/1,046.36
  6. Step 6: Final answer
    x = 473.96

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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.