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Finding the Fourth Proportional to 6,753.80, 10,130.70 and 4,129.40

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Solution

The fourth proportional to 6,753.80, 10,130.70 and 4,129.40 is: 6,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,753.80 : 10,130.70 = 4,129.40 : x
  2. Step 2: Convert to fraction form
    6,753.80/10,130.70 = 4,129.40/x
  3. Step 3: Cross multiply
    6,753.80x = 10,130.70 × 4,129.40
  4. Step 4: Simplify right side
    6,753.80x = 41,833,712.58
  5. Step 5: Solve for x
    x = 41,833,712.58/6,753.80
  6. Step 6: Final answer
    x = 6,194.10

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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.