Home / 3,904.80-5,387.40-2,411.16

Finding the Fourth Proportional to 3,904.80, 5,387.40 and 2,411.16

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Solution

The fourth proportional to 3,904.80, 5,387.40 and 2,411.16 is: 3,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.80 : 5,387.40 = 2,411.16 : x
  2. Step 2: Convert to fraction form
    3,904.80/5,387.40 = 2,411.16/x
  3. Step 3: Cross multiply
    3,904.80x = 5,387.40 × 2,411.16
  4. Step 4: Simplify right side
    3,904.80x = 12,989,883.38
  5. Step 5: Solve for x
    x = 12,989,883.38/3,904.80
  6. Step 6: Final answer
    x = 3,326.64

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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.