Home / 2,866.89-3,956.94-1,818.75

Finding the Fourth Proportional to 2,866.89, 3,956.94 and 1,818.75

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Solution

The fourth proportional to 2,866.89, 3,956.94 and 1,818.75 is: 2,510.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.89 : 3,956.94 = 1,818.75 : x
  2. Step 2: Convert to fraction form
    2,866.89/3,956.94 = 1,818.75/x
  3. Step 3: Cross multiply
    2,866.89x = 3,956.94 × 1,818.75
  4. Step 4: Simplify right side
    2,866.89x = 7,196,684.63
  5. Step 5: Solve for x
    x = 7,196,684.63/2,866.89
  6. Step 6: Final answer
    x = 2,510.28

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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.