Home / 3,489.50-5,236.58-1,298.45

Finding the Fourth Proportional to 3,489.50, 5,236.58 and 1,298.45

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Solution

The fourth proportional to 3,489.50, 5,236.58 and 1,298.45 is: 1,948.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.50 : 5,236.58 = 1,298.45 : x
  2. Step 2: Convert to fraction form
    3,489.50/5,236.58 = 1,298.45/x
  3. Step 3: Cross multiply
    3,489.50x = 5,236.58 × 1,298.45
  4. Step 4: Simplify right side
    3,489.50x = 6,799,437.30
  5. Step 5: Solve for x
    x = 6,799,437.30/3,489.50
  6. Step 6: Final answer
    x = 1,948.54

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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.