Home / 3,974.60-5,484.86-2,206.16

Finding the Fourth Proportional to 3,974.60, 5,484.86 and 2,206.16

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Solution

The fourth proportional to 3,974.60, 5,484.86 and 2,206.16 is: 3,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.60 : 5,484.86 = 2,206.16 : x
  2. Step 2: Convert to fraction form
    3,974.60/5,484.86 = 2,206.16/x
  3. Step 3: Cross multiply
    3,974.60x = 5,484.86 × 2,206.16
  4. Step 4: Simplify right side
    3,974.60x = 12,100,478.74
  5. Step 5: Solve for x
    x = 12,100,478.74/3,974.60
  6. Step 6: Final answer
    x = 3,044.45

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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.