Home / 6,140.40-9,205.20-2,445.12

Finding the Fourth Proportional to 6,140.40, 9,205.20 and 2,445.12

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Solution

The fourth proportional to 6,140.40, 9,205.20 and 2,445.12 is: 3,665.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.40 : 9,205.20 = 2,445.12 : x
  2. Step 2: Convert to fraction form
    6,140.40/9,205.20 = 2,445.12/x
  3. Step 3: Cross multiply
    6,140.40x = 9,205.20 × 2,445.12
  4. Step 4: Simplify right side
    6,140.40x = 22,507,818.62
  5. Step 5: Solve for x
    x = 22,507,818.62/6,140.40
  6. Step 6: Final answer
    x = 3,665.53

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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.