Home / 7,323.36-10,987.31-2,129.23

Finding the Fourth Proportional to 7,323.36, 10,987.31 and 2,129.23

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Solution

The fourth proportional to 7,323.36, 10,987.31 and 2,129.23 is: 3,194.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,323.36 : 10,987.31 = 2,129.23 : x
  2. Step 2: Convert to fraction form
    7,323.36/10,987.31 = 2,129.23/x
  3. Step 3: Cross multiply
    7,323.36x = 10,987.31 × 2,129.23
  4. Step 4: Simplify right side
    7,323.36x = 23,394,510.07
  5. Step 5: Solve for x
    x = 23,394,510.07/7,323.36
  6. Step 6: Final answer
    x = 3,194.50

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Double scale
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Similar ratio
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1.5x scale

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.