Home / 7,326.11-10,989.14-1,779.45

Finding the Fourth Proportional to 7,326.11, 10,989.14 and 1,779.45

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Solution

The fourth proportional to 7,326.11, 10,989.14 and 1,779.45 is: 2,669.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.11 : 10,989.14 = 1,779.45 : x
  2. Step 2: Convert to fraction form
    7,326.11/10,989.14 = 1,779.45/x
  3. Step 3: Cross multiply
    7,326.11x = 10,989.14 × 1,779.45
  4. Step 4: Simplify right side
    7,326.11x = 19,554,629.62
  5. Step 5: Solve for x
    x = 19,554,629.62/7,326.11
  6. Step 6: Final answer
    x = 2,669.17

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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.