Home / 4,478.04-6,718.20-2,630.72

Finding the Fourth Proportional to 4,478.04, 6,718.20 and 2,630.72

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Solution

The fourth proportional to 4,478.04, 6,718.20 and 2,630.72 is: 3,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.04 : 6,718.20 = 2,630.72 : x
  2. Step 2: Convert to fraction form
    4,478.04/6,718.20 = 2,630.72/x
  3. Step 3: Cross multiply
    4,478.04x = 6,718.20 × 2,630.72
  4. Step 4: Simplify right side
    4,478.04x = 17,673,719.90
  5. Step 5: Solve for x
    x = 17,673,719.90/4,478.04
  6. Step 6: Final answer
    x = 3,946.75

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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.