Home / 3,903.95-5,387.36-2,392.10

Finding the Fourth Proportional to 3,903.95, 5,387.36 and 2,392.10

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Solution

The fourth proportional to 3,903.95, 5,387.36 and 2,392.10 is: 3,301.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.95 : 5,387.36 = 2,392.10 : x
  2. Step 2: Convert to fraction form
    3,903.95/5,387.36 = 2,392.10/x
  3. Step 3: Cross multiply
    3,903.95x = 5,387.36 × 2,392.10
  4. Step 4: Simplify right side
    3,903.95x = 12,887,103.86
  5. Step 5: Solve for x
    x = 12,887,103.86/3,903.95
  6. Step 6: Final answer
    x = 3,301.04

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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.