Home / 3,903.80-5,856.30-1,306.13

Finding the Fourth Proportional to 3,903.80, 5,856.30 and 1,306.13

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Solution

The fourth proportional to 3,903.80, 5,856.30 and 1,306.13 is: 1,959.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.80 : 5,856.30 = 1,306.13 : x
  2. Step 2: Convert to fraction form
    3,903.80/5,856.30 = 1,306.13/x
  3. Step 3: Cross multiply
    3,903.80x = 5,856.30 × 1,306.13
  4. Step 4: Simplify right side
    3,903.80x = 7,649,059.84
  5. Step 5: Solve for x
    x = 7,649,059.84/3,903.80
  6. Step 6: Final answer
    x = 1,959.39

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1.5x scale

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.