Home / 5,282.40-7,920.65-2,164.58

Finding the Fourth Proportional to 5,282.40, 7,920.65 and 2,164.58

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Solution

The fourth proportional to 5,282.40, 7,920.65 and 2,164.58 is: 3,245.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.40 : 7,920.65 = 2,164.58 : x
  2. Step 2: Convert to fraction form
    5,282.40/7,920.65 = 2,164.58/x
  3. Step 3: Cross multiply
    5,282.40x = 7,920.65 × 2,164.58
  4. Step 4: Simplify right side
    5,282.40x = 17,144,830.15
  5. Step 5: Solve for x
    x = 17,144,830.15/5,282.40
  6. Step 6: Final answer
    x = 3,245.65

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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.