Home / 1,455.40-2,179.49-1,363.13

Finding the Fourth Proportional to 1,455.40, 2,179.49 and 1,363.13

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Solution

The fourth proportional to 1,455.40, 2,179.49 and 1,363.13 is: 2,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.40 : 2,179.49 = 1,363.13 : x
  2. Step 2: Convert to fraction form
    1,455.40/2,179.49 = 1,363.13/x
  3. Step 3: Cross multiply
    1,455.40x = 2,179.49 × 1,363.13
  4. Step 4: Simplify right side
    1,455.40x = 2,970,917.31
  5. Step 5: Solve for x
    x = 2,970,917.31/1,455.40
  6. Step 6: Final answer
    x = 2,041.31

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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.