Home / 3,109.20-4,660.02-1,937.40

Finding the Fourth Proportional to 3,109.20, 4,660.02 and 1,937.40

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Solution

The fourth proportional to 3,109.20, 4,660.02 and 1,937.40 is: 2,903.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.20 : 4,660.02 = 1,937.40 : x
  2. Step 2: Convert to fraction form
    3,109.20/4,660.02 = 1,937.40/x
  3. Step 3: Cross multiply
    3,109.20x = 4,660.02 × 1,937.40
  4. Step 4: Simplify right side
    3,109.20x = 9,028,322.75
  5. Step 5: Solve for x
    x = 9,028,322.75/3,109.20
  6. Step 6: Final answer
    x = 2,903.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.