Home / 3,098.40-4,275.33-1,839.50

Finding the Fourth Proportional to 3,098.40, 4,275.33 and 1,839.50

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Solution

The fourth proportional to 3,098.40, 4,275.33 and 1,839.50 is: 2,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.40 : 4,275.33 = 1,839.50 : x
  2. Step 2: Convert to fraction form
    3,098.40/4,275.33 = 1,839.50/x
  3. Step 3: Cross multiply
    3,098.40x = 4,275.33 × 1,839.50
  4. Step 4: Simplify right side
    3,098.40x = 7,864,491.69
  5. Step 5: Solve for x
    x = 7,864,491.69/3,098.40
  6. Step 6: Final answer
    x = 2,538.25

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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.