Home / 3,810.71-5,256.45-2,319.65

Finding the Fourth Proportional to 3,810.71, 5,256.45 and 2,319.65

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Solution

The fourth proportional to 3,810.71, 5,256.45 and 2,319.65 is: 3,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.71 : 5,256.45 = 2,319.65 : x
  2. Step 2: Convert to fraction form
    3,810.71/5,256.45 = 2,319.65/x
  3. Step 3: Cross multiply
    3,810.71x = 5,256.45 × 2,319.65
  4. Step 4: Simplify right side
    3,810.71x = 12,193,097.96
  5. Step 5: Solve for x
    x = 12,193,097.96/3,810.71
  6. Step 6: Final answer
    x = 3,199.70

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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.