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Finding the Fourth Proportional to 4,885.20, 6,750 and 4,010.40

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Solution

The fourth proportional to 4,885.20, 6,750 and 4,010.40 is: 5,541.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.20 : 6,750 = 4,010.40 : x
  2. Step 2: Convert to fraction form
    4,885.20/6,750 = 4,010.40/x
  3. Step 3: Cross multiply
    4,885.20x = 6,750 × 4,010.40
  4. Step 4: Simplify right side
    4,885.20x = 27,070,200
  5. Step 5: Solve for x
    x = 27,070,200/4,885.20
  6. Step 6: Final answer
    x = 5,541.27

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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.