Home / 3,315.60-4,965.84-2,655.18

Finding the Fourth Proportional to 3,315.60, 4,965.84 and 2,655.18

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Solution

The fourth proportional to 3,315.60, 4,965.84 and 2,655.18 is: 3,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.60 : 4,965.84 = 2,655.18 : x
  2. Step 2: Convert to fraction form
    3,315.60/4,965.84 = 2,655.18/x
  3. Step 3: Cross multiply
    3,315.60x = 4,965.84 × 2,655.18
  4. Step 4: Simplify right side
    3,315.60x = 13,185,199.05
  5. Step 5: Solve for x
    x = 13,185,199.05/3,315.60
  6. Step 6: Final answer
    x = 3,976.72

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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.