Home / 3,610.01-4,981.78-2,117.64

Finding the Fourth Proportional to 3,610.01, 4,981.78 and 2,117.64

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Solution

The fourth proportional to 3,610.01, 4,981.78 and 2,117.64 is: 2,922.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.01 : 4,981.78 = 2,117.64 : x
  2. Step 2: Convert to fraction form
    3,610.01/4,981.78 = 2,117.64/x
  3. Step 3: Cross multiply
    3,610.01x = 4,981.78 × 2,117.64
  4. Step 4: Simplify right side
    3,610.01x = 10,549,616.60
  5. Step 5: Solve for x
    x = 10,549,616.60/3,610.01
  6. Step 6: Final answer
    x = 2,922.32

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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.