Home / 2,742.20-4,113.30-2,353.40

Finding the Fourth Proportional to 2,742.20, 4,113.30 and 2,353.40

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Solution

The fourth proportional to 2,742.20, 4,113.30 and 2,353.40 is: 3,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.20 : 4,113.30 = 2,353.40 : x
  2. Step 2: Convert to fraction form
    2,742.20/4,113.30 = 2,353.40/x
  3. Step 3: Cross multiply
    2,742.20x = 4,113.30 × 2,353.40
  4. Step 4: Simplify right side
    2,742.20x = 9,680,240.22
  5. Step 5: Solve for x
    x = 9,680,240.22/2,742.20
  6. Step 6: Final answer
    x = 3,530.10

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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.