Home / 2,886.24-3,981.92-1,823.70

Finding the Fourth Proportional to 2,886.24, 3,981.92 and 1,823.70

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Solution

The fourth proportional to 2,886.24, 3,981.92 and 1,823.70 is: 2,516.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.24 : 3,981.92 = 1,823.70 : x
  2. Step 2: Convert to fraction form
    2,886.24/3,981.92 = 1,823.70/x
  3. Step 3: Cross multiply
    2,886.24x = 3,981.92 × 1,823.70
  4. Step 4: Simplify right side
    2,886.24x = 7,261,827.50
  5. Step 5: Solve for x
    x = 7,261,827.50/2,886.24
  6. Step 6: Final answer
    x = 2,516.02

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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.