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Finding the Fourth Proportional to 2,389, 3,297 and 1,341.13

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Solution

The fourth proportional to 2,389, 3,297 and 1,341.13 is: 1,850.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389 : 3,297 = 1,341.13 : x
  2. Step 2: Convert to fraction form
    2,389/3,297 = 1,341.13/x
  3. Step 3: Cross multiply
    2,389x = 3,297 × 1,341.13
  4. Step 4: Simplify right side
    2,389x = 4,421,705.61
  5. Step 5: Solve for x
    x = 4,421,705.61/2,389
  6. Step 6: Final answer
    x = 1,850.86

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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.