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Finding the Fourth Proportional to 6,710.80, 10,062.60 and 2,810.80

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Solution

The fourth proportional to 6,710.80, 10,062.60 and 2,810.80 is: 4,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,710.80 : 10,062.60 = 2,810.80 : x
  2. Step 2: Convert to fraction form
    6,710.80/10,062.60 = 2,810.80/x
  3. Step 3: Cross multiply
    6,710.80x = 10,062.60 × 2,810.80
  4. Step 4: Simplify right side
    6,710.80x = 28,283,956.08
  5. Step 5: Solve for x
    x = 28,283,956.08/6,710.80
  6. Step 6: Final answer
    x = 4,214.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.