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Finding the Fourth Proportional to 2,700.73, 4,054.74 and 1,240.30

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Solution

The fourth proportional to 2,700.73, 4,054.74 and 1,240.30 is: 1,862.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.73 : 4,054.74 = 1,240.30 : x
  2. Step 2: Convert to fraction form
    2,700.73/4,054.74 = 1,240.30/x
  3. Step 3: Cross multiply
    2,700.73x = 4,054.74 × 1,240.30
  4. Step 4: Simplify right side
    2,700.73x = 5,029,094.02
  5. Step 5: Solve for x
    x = 5,029,094.02/2,700.73
  6. Step 6: Final answer
    x = 1,862.12

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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.