Home / 4,088.78-5,642.48-2,225.78

Finding the Fourth Proportional to 4,088.78, 5,642.48 and 2,225.78

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Solution

The fourth proportional to 4,088.78, 5,642.48 and 2,225.78 is: 3,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,088.78 : 5,642.48 = 2,225.78 : x
  2. Step 2: Convert to fraction form
    4,088.78/5,642.48 = 2,225.78/x
  3. Step 3: Cross multiply
    4,088.78x = 5,642.48 × 2,225.78
  4. Step 4: Simplify right side
    4,088.78x = 12,558,919.13
  5. Step 5: Solve for x
    x = 12,558,919.13/4,088.78
  6. Step 6: Final answer
    x = 3,071.56

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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.