Home / 2,411.19-3,617.82-767.87

Finding the Fourth Proportional to 2,411.19, 3,617.82 and 767.87

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Solution

The fourth proportional to 2,411.19, 3,617.82 and 767.87 is: 1,152.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.19 : 3,617.82 = 767.87 : x
  2. Step 2: Convert to fraction form
    2,411.19/3,617.82 = 767.87/x
  3. Step 3: Cross multiply
    2,411.19x = 3,617.82 × 767.87
  4. Step 4: Simplify right side
    2,411.19x = 2,778,011.60
  5. Step 5: Solve for x
    x = 2,778,011.60/2,411.19
  6. Step 6: Final answer
    x = 1,152.13

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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.