Home / 4,003.60-6,005.40-2,621.20

Finding the Fourth Proportional to 4,003.60, 6,005.40 and 2,621.20

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Solution

The fourth proportional to 4,003.60, 6,005.40 and 2,621.20 is: 3,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,003.60 : 6,005.40 = 2,621.20 : x
  2. Step 2: Convert to fraction form
    4,003.60/6,005.40 = 2,621.20/x
  3. Step 3: Cross multiply
    4,003.60x = 6,005.40 × 2,621.20
  4. Step 4: Simplify right side
    4,003.60x = 15,741,354.48
  5. Step 5: Solve for x
    x = 15,741,354.48/4,003.60
  6. Step 6: Final answer
    x = 3,931.80

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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.