Home / 4,071.60-5,621.40-2,500.20

Finding the Fourth Proportional to 4,071.60, 5,621.40 and 2,500.20

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Solution

The fourth proportional to 4,071.60, 5,621.40 and 2,500.20 is: 3,451.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,071.60 : 5,621.40 = 2,500.20 : x
  2. Step 2: Convert to fraction form
    4,071.60/5,621.40 = 2,500.20/x
  3. Step 3: Cross multiply
    4,071.60x = 5,621.40 × 2,500.20
  4. Step 4: Simplify right side
    4,071.60x = 14,054,624.28
  5. Step 5: Solve for x
    x = 14,054,624.28/4,071.60
  6. Step 6: Final answer
    x = 3,451.87

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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.