Home / 3,904.41-5,386.19-2,660.25

Finding the Fourth Proportional to 3,904.41, 5,386.19 and 2,660.25

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Solution

The fourth proportional to 3,904.41, 5,386.19 and 2,660.25 is: 3,669.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.41 : 5,386.19 = 2,660.25 : x
  2. Step 2: Convert to fraction form
    3,904.41/5,386.19 = 2,660.25/x
  3. Step 3: Cross multiply
    3,904.41x = 5,386.19 × 2,660.25
  4. Step 4: Simplify right side
    3,904.41x = 14,328,598.65
  5. Step 5: Solve for x
    x = 14,328,598.65/3,904.41
  6. Step 6: Final answer
    x = 3,669.85

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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.