Home / 1,048.16-1,572.25-317.74

Finding the Fourth Proportional to 1,048.16, 1,572.25 and 317.74

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Solution

The fourth proportional to 1,048.16, 1,572.25 and 317.74 is: 476.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.16 : 1,572.25 = 317.74 : x
  2. Step 2: Convert to fraction form
    1,048.16/1,572.25 = 317.74/x
  3. Step 3: Cross multiply
    1,048.16x = 1,572.25 × 317.74
  4. Step 4: Simplify right side
    1,048.16x = 499,566.72
  5. Step 5: Solve for x
    x = 499,566.72/1,048.16
  6. Step 6: Final answer
    x = 476.61

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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.