Home / 3,007.19-4,510.77-815.91

Finding the Fourth Proportional to 3,007.19, 4,510.77 and 815.91

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Solution

The fourth proportional to 3,007.19, 4,510.77 and 815.91 is: 1,223.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.19 : 4,510.77 = 815.91 : x
  2. Step 2: Convert to fraction form
    3,007.19/4,510.77 = 815.91/x
  3. Step 3: Cross multiply
    3,007.19x = 4,510.77 × 815.91
  4. Step 4: Simplify right side
    3,007.19x = 3,680,382.35
  5. Step 5: Solve for x
    x = 3,680,382.35/3,007.19
  6. Step 6: Final answer
    x = 1,223.86

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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.