Home / 4,270.40-6,405.32-1,350.80

Finding the Fourth Proportional to 4,270.40, 6,405.32 and 1,350.80

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Solution

The fourth proportional to 4,270.40, 6,405.32 and 1,350.80 is: 2,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.40 : 6,405.32 = 1,350.80 : x
  2. Step 2: Convert to fraction form
    4,270.40/6,405.32 = 1,350.80/x
  3. Step 3: Cross multiply
    4,270.40x = 6,405.32 × 1,350.80
  4. Step 4: Simplify right side
    4,270.40x = 8,652,306.26
  5. Step 5: Solve for x
    x = 8,652,306.26/4,270.40
  6. Step 6: Final answer
    x = 2,026.11

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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.