Home / 3,500.19-5,250.30-1,309.11

Finding the Fourth Proportional to 3,500.19, 5,250.30 and 1,309.11

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Solution

The fourth proportional to 3,500.19, 5,250.30 and 1,309.11 is: 1,963.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.19 : 5,250.30 = 1,309.11 : x
  2. Step 2: Convert to fraction form
    3,500.19/5,250.30 = 1,309.11/x
  3. Step 3: Cross multiply
    3,500.19x = 5,250.30 × 1,309.11
  4. Step 4: Simplify right side
    3,500.19x = 6,873,220.23
  5. Step 5: Solve for x
    x = 6,873,220.23/3,500.19
  6. Step 6: Final answer
    x = 1,963.67

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Double scale
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Similar ratio
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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.