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Finding the Fourth Proportional to 2,508.84, 3,763.80 and 866.70

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Solution

The fourth proportional to 2,508.84, 3,763.80 and 866.70 is: 1,300.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.84 : 3,763.80 = 866.70 : x
  2. Step 2: Convert to fraction form
    2,508.84/3,763.80 = 866.70/x
  3. Step 3: Cross multiply
    2,508.84x = 3,763.80 × 866.70
  4. Step 4: Simplify right side
    2,508.84x = 3,262,085.46
  5. Step 5: Solve for x
    x = 3,262,085.46/2,508.84
  6. Step 6: Final answer
    x = 1,300.24

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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.