Home / 2,866.91-3,956.67-1,875.06

Finding the Fourth Proportional to 2,866.91, 3,956.67 and 1,875.06

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Solution

The fourth proportional to 2,866.91, 3,956.67 and 1,875.06 is: 2,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.91 : 3,956.67 = 1,875.06 : x
  2. Step 2: Convert to fraction form
    2,866.91/3,956.67 = 1,875.06/x
  3. Step 3: Cross multiply
    2,866.91x = 3,956.67 × 1,875.06
  4. Step 4: Simplify right side
    2,866.91x = 7,418,993.65
  5. Step 5: Solve for x
    x = 7,418,993.65/2,866.91
  6. Step 6: Final answer
    x = 2,587.81

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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.