Home / 4,231.40-6,347.10-1,766.20

Finding the Fourth Proportional to 4,231.40, 6,347.10 and 1,766.20

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Solution

The fourth proportional to 4,231.40, 6,347.10 and 1,766.20 is: 2,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231.40 : 6,347.10 = 1,766.20 : x
  2. Step 2: Convert to fraction form
    4,231.40/6,347.10 = 1,766.20/x
  3. Step 3: Cross multiply
    4,231.40x = 6,347.10 × 1,766.20
  4. Step 4: Simplify right side
    4,231.40x = 11,210,248.02
  5. Step 5: Solve for x
    x = 11,210,248.02/4,231.40
  6. Step 6: Final answer
    x = 2,649.30

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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.