Home / 2,319.60-3,480.20-1,020.88

Finding the Fourth Proportional to 2,319.60, 3,480.20 and 1,020.88

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Solution

The fourth proportional to 2,319.60, 3,480.20 and 1,020.88 is: 1,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.60 : 3,480.20 = 1,020.88 : x
  2. Step 2: Convert to fraction form
    2,319.60/3,480.20 = 1,020.88/x
  3. Step 3: Cross multiply
    2,319.60x = 3,480.20 × 1,020.88
  4. Step 4: Simplify right side
    2,319.60x = 3,552,866.58
  5. Step 5: Solve for x
    x = 3,552,866.58/2,319.60
  6. Step 6: Final answer
    x = 1,531.67

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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.