Home / 2,147.81-2,979.02-2,060.33

Finding the Fourth Proportional to 2,147.81, 2,979.02 and 2,060.33

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Solution

The fourth proportional to 2,147.81, 2,979.02 and 2,060.33 is: 2,857.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.81 : 2,979.02 = 2,060.33 : x
  2. Step 2: Convert to fraction form
    2,147.81/2,979.02 = 2,060.33/x
  3. Step 3: Cross multiply
    2,147.81x = 2,979.02 × 2,060.33
  4. Step 4: Simplify right side
    2,147.81x = 6,137,754.53
  5. Step 5: Solve for x
    x = 6,137,754.53/2,147.81
  6. Step 6: Final answer
    x = 2,857.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.