Home / 1,323.40-1,827.63-1,100.14

Finding the Fourth Proportional to 1,323.40, 1,827.63 and 1,100.14

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Solution

The fourth proportional to 1,323.40, 1,827.63 and 1,100.14 is: 1,519.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.40 : 1,827.63 = 1,100.14 : x
  2. Step 2: Convert to fraction form
    1,323.40/1,827.63 = 1,100.14/x
  3. Step 3: Cross multiply
    1,323.40x = 1,827.63 × 1,100.14
  4. Step 4: Simplify right side
    1,323.40x = 2,010,648.87
  5. Step 5: Solve for x
    x = 2,010,648.87/1,323.40
  6. Step 6: Final answer
    x = 1,519.31

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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.