Home / 5,877.78-8,111.28-3,225.20

Finding the Fourth Proportional to 5,877.78, 8,111.28 and 3,225.20

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Solution

The fourth proportional to 5,877.78, 8,111.28 and 3,225.20 is: 4,450.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,877.78 : 8,111.28 = 3,225.20 : x
  2. Step 2: Convert to fraction form
    5,877.78/8,111.28 = 3,225.20/x
  3. Step 3: Cross multiply
    5,877.78x = 8,111.28 × 3,225.20
  4. Step 4: Simplify right side
    5,877.78x = 26,160,459.70
  5. Step 5: Solve for x
    x = 26,160,459.70/5,877.78
  6. Step 6: Final answer
    x = 4,450.74

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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.