Home / 5,280.43-7,919.52-1,770.70

Finding the Fourth Proportional to 5,280.43, 7,919.52 and 1,770.70

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Solution

The fourth proportional to 5,280.43, 7,919.52 and 1,770.70 is: 2,655.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.43 : 7,919.52 = 1,770.70 : x
  2. Step 2: Convert to fraction form
    5,280.43/7,919.52 = 1,770.70/x
  3. Step 3: Cross multiply
    5,280.43x = 7,919.52 × 1,770.70
  4. Step 4: Simplify right side
    5,280.43x = 14,023,094.06
  5. Step 5: Solve for x
    x = 14,023,094.06/5,280.43
  6. Step 6: Final answer
    x = 2,655.67

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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.