Home / 5,202.18-7,802.40-2,279.70

Finding the Fourth Proportional to 5,202.18, 7,802.40 and 2,279.70

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Solution

The fourth proportional to 5,202.18, 7,802.40 and 2,279.70 is: 3,419.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,202.18 : 7,802.40 = 2,279.70 : x
  2. Step 2: Convert to fraction form
    5,202.18/7,802.40 = 2,279.70/x
  3. Step 3: Cross multiply
    5,202.18x = 7,802.40 × 2,279.70
  4. Step 4: Simplify right side
    5,202.18x = 17,787,131.28
  5. Step 5: Solve for x
    x = 17,787,131.28/5,202.18
  6. Step 6: Final answer
    x = 3,419.17

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1.5x scale

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.