Home / 7,799.80-10,763.71-4,214.76

Finding the Fourth Proportional to 7,799.80, 10,763.71 and 4,214.76

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Solution

The fourth proportional to 7,799.80, 10,763.71 and 4,214.76 is: 5,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.80 : 10,763.71 = 4,214.76 : x
  2. Step 2: Convert to fraction form
    7,799.80/10,763.71 = 4,214.76/x
  3. Step 3: Cross multiply
    7,799.80x = 10,763.71 × 4,214.76
  4. Step 4: Simplify right side
    7,799.80x = 45,366,454.36
  5. Step 5: Solve for x
    x = 45,366,454.36/7,799.80
  6. Step 6: Final answer
    x = 5,816.36

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Half scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.