Home / 2,398.45-3,309.70-1,403.67

Finding the Fourth Proportional to 2,398.45, 3,309.70 and 1,403.67

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Solution

The fourth proportional to 2,398.45, 3,309.70 and 1,403.67 is: 1,936.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.45 : 3,309.70 = 1,403.67 : x
  2. Step 2: Convert to fraction form
    2,398.45/3,309.70 = 1,403.67/x
  3. Step 3: Cross multiply
    2,398.45x = 3,309.70 × 1,403.67
  4. Step 4: Simplify right side
    2,398.45x = 4,645,726.60
  5. Step 5: Solve for x
    x = 4,645,726.60/2,398.45
  6. Step 6: Final answer
    x = 1,936.97

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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.