Home / 7,326.24-10,989.21-1,779.61

Finding the Fourth Proportional to 7,326.24, 10,989.21 and 1,779.61

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Solution

The fourth proportional to 7,326.24, 10,989.21 and 1,779.61 is: 2,669.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.24 : 10,989.21 = 1,779.61 : x
  2. Step 2: Convert to fraction form
    7,326.24/10,989.21 = 1,779.61/x
  3. Step 3: Cross multiply
    7,326.24x = 10,989.21 × 1,779.61
  4. Step 4: Simplify right side
    7,326.24x = 19,556,515.07
  5. Step 5: Solve for x
    x = 19,556,515.07/7,326.24
  6. Step 6: Final answer
    x = 2,669.38

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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.