Home / 3,250.40-4,875.60-3,231.20

Finding the Fourth Proportional to 3,250.40, 4,875.60 and 3,231.20

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Solution

The fourth proportional to 3,250.40, 4,875.60 and 3,231.20 is: 4,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,250.40 : 4,875.60 = 3,231.20 : x
  2. Step 2: Convert to fraction form
    3,250.40/4,875.60 = 3,231.20/x
  3. Step 3: Cross multiply
    3,250.40x = 4,875.60 × 3,231.20
  4. Step 4: Simplify right side
    3,250.40x = 15,754,038.72
  5. Step 5: Solve for x
    x = 15,754,038.72/3,250.40
  6. Step 6: Final answer
    x = 4,846.80

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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.