Home / 3,955.20-5,459.92-2,362.40

Finding the Fourth Proportional to 3,955.20, 5,459.92 and 2,362.40

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Solution

The fourth proportional to 3,955.20, 5,459.92 and 2,362.40 is: 3,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.20 : 5,459.92 = 2,362.40 : x
  2. Step 2: Convert to fraction form
    3,955.20/5,459.92 = 2,362.40/x
  3. Step 3: Cross multiply
    3,955.20x = 5,459.92 × 2,362.40
  4. Step 4: Simplify right side
    3,955.20x = 12,898,515.01
  5. Step 5: Solve for x
    x = 12,898,515.01/3,955.20
  6. Step 6: Final answer
    x = 3,261.15

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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.