Home / 3,718.79-5,131.38-2,394.28

Finding the Fourth Proportional to 3,718.79, 5,131.38 and 2,394.28

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Solution

The fourth proportional to 3,718.79, 5,131.38 and 2,394.28 is: 3,303.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.79 : 5,131.38 = 2,394.28 : x
  2. Step 2: Convert to fraction form
    3,718.79/5,131.38 = 2,394.28/x
  3. Step 3: Cross multiply
    3,718.79x = 5,131.38 × 2,394.28
  4. Step 4: Simplify right side
    3,718.79x = 12,285,960.51
  5. Step 5: Solve for x
    x = 12,285,960.51/3,718.79
  6. Step 6: Final answer
    x = 3,303.75

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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.