Home / 3,988.06-5,510.24-2,866.77

Finding the Fourth Proportional to 3,988.06, 5,510.24 and 2,866.77

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Solution

The fourth proportional to 3,988.06, 5,510.24 and 2,866.77 is: 3,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.06 : 5,510.24 = 2,866.77 : x
  2. Step 2: Convert to fraction form
    3,988.06/5,510.24 = 2,866.77/x
  3. Step 3: Cross multiply
    3,988.06x = 5,510.24 × 2,866.77
  4. Step 4: Simplify right side
    3,988.06x = 15,796,590.72
  5. Step 5: Solve for x
    x = 15,796,590.72/3,988.06
  6. Step 6: Final answer
    x = 3,960.97

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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.