Home / 1,341.30-2,011.95-416.79

Finding the Fourth Proportional to 1,341.30, 2,011.95 and 416.79

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Solution

The fourth proportional to 1,341.30, 2,011.95 and 416.79 is: 625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.30 : 2,011.95 = 416.79 : x
  2. Step 2: Convert to fraction form
    1,341.30/2,011.95 = 416.79/x
  3. Step 3: Cross multiply
    1,341.30x = 2,011.95 × 416.79
  4. Step 4: Simplify right side
    1,341.30x = 838,560.64
  5. Step 5: Solve for x
    x = 838,560.64/1,341.30
  6. Step 6: Final answer
    x = 625.19

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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.