Home / 7,339.51-11,009.37-2,145.39

Finding the Fourth Proportional to 7,339.51, 11,009.37 and 2,145.39

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Solution

The fourth proportional to 7,339.51, 11,009.37 and 2,145.39 is: 3,218.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.51 : 11,009.37 = 2,145.39 : x
  2. Step 2: Convert to fraction form
    7,339.51/11,009.37 = 2,145.39/x
  3. Step 3: Cross multiply
    7,339.51x = 11,009.37 × 2,145.39
  4. Step 4: Simplify right side
    7,339.51x = 23,619,326.53
  5. Step 5: Solve for x
    x = 23,619,326.53/7,339.51
  6. Step 6: Final answer
    x = 3,218.11

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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.