Home / 3,716.65-5,127.69-2,391.13

Finding the Fourth Proportional to 3,716.65, 5,127.69 and 2,391.13

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Solution

The fourth proportional to 3,716.65, 5,127.69 and 2,391.13 is: 3,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.65 : 5,127.69 = 2,391.13 : x
  2. Step 2: Convert to fraction form
    3,716.65/5,127.69 = 2,391.13/x
  3. Step 3: Cross multiply
    3,716.65x = 5,127.69 × 2,391.13
  4. Step 4: Simplify right side
    3,716.65x = 12,260,973.39
  5. Step 5: Solve for x
    x = 12,260,973.39/3,716.65
  6. Step 6: Final answer
    x = 3,298.93

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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.