Home / 1,341.11-2,011.67-416.81

Finding the Fourth Proportional to 1,341.11, 2,011.67 and 416.81

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Solution

The fourth proportional to 1,341.11, 2,011.67 and 416.81 is: 625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.11 : 2,011.67 = 416.81 : x
  2. Step 2: Convert to fraction form
    1,341.11/2,011.67 = 416.81/x
  3. Step 3: Cross multiply
    1,341.11x = 2,011.67 × 416.81
  4. Step 4: Simplify right side
    1,341.11x = 838,475.16
  5. Step 5: Solve for x
    x = 838,475.16/1,341.11
  6. Step 6: Final answer
    x = 625.21

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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.