Home / 4,178.71-5,765.38-2,386.13

Finding the Fourth Proportional to 4,178.71, 5,765.38 and 2,386.13

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Solution

The fourth proportional to 4,178.71, 5,765.38 and 2,386.13 is: 3,292.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.71 : 5,765.38 = 2,386.13 : x
  2. Step 2: Convert to fraction form
    4,178.71/5,765.38 = 2,386.13/x
  3. Step 3: Cross multiply
    4,178.71x = 5,765.38 × 2,386.13
  4. Step 4: Simplify right side
    4,178.71x = 13,756,911.39
  5. Step 5: Solve for x
    x = 13,756,911.39/4,178.71
  6. Step 6: Final answer
    x = 3,292.15

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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.