Home / 2,427.90-3,349.50-1,432.80

Finding the Fourth Proportional to 2,427.90, 3,349.50 and 1,432.80

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Solution

The fourth proportional to 2,427.90, 3,349.50 and 1,432.80 is: 1,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.90 : 3,349.50 = 1,432.80 : x
  2. Step 2: Convert to fraction form
    2,427.90/3,349.50 = 1,432.80/x
  3. Step 3: Cross multiply
    2,427.90x = 3,349.50 × 1,432.80
  4. Step 4: Simplify right side
    2,427.90x = 4,799,163.60
  5. Step 5: Solve for x
    x = 4,799,163.60/2,427.90
  6. Step 6: Final answer
    x = 1,976.67

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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.