Home / 1,417.48-2,125.80-1,109.92

Finding the Fourth Proportional to 1,417.48, 2,125.80 and 1,109.92

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Solution

The fourth proportional to 1,417.48, 2,125.80 and 1,109.92 is: 1,664.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.48 : 2,125.80 = 1,109.92 : x
  2. Step 2: Convert to fraction form
    1,417.48/2,125.80 = 1,109.92/x
  3. Step 3: Cross multiply
    1,417.48x = 2,125.80 × 1,109.92
  4. Step 4: Simplify right side
    1,417.48x = 2,359,467.94
  5. Step 5: Solve for x
    x = 2,359,467.94/1,417.48
  6. Step 6: Final answer
    x = 1,664.55

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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.