Home / 4,478.87-6,718.31-2,168.75

Finding the Fourth Proportional to 4,478.87, 6,718.31 and 2,168.75

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Solution

The fourth proportional to 4,478.87, 6,718.31 and 2,168.75 is: 3,253.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.87 : 6,718.31 = 2,168.75 : x
  2. Step 2: Convert to fraction form
    4,478.87/6,718.31 = 2,168.75/x
  3. Step 3: Cross multiply
    4,478.87x = 6,718.31 × 2,168.75
  4. Step 4: Simplify right side
    4,478.87x = 14,570,334.81
  5. Step 5: Solve for x
    x = 14,570,334.81/4,478.87
  6. Step 6: Final answer
    x = 3,253.13

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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.