Home / 7,109.88-10,666.08-2,428.79

Finding the Fourth Proportional to 7,109.88, 10,666.08 and 2,428.79

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Solution

The fourth proportional to 7,109.88, 10,666.08 and 2,428.79 is: 3,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.88 : 10,666.08 = 2,428.79 : x
  2. Step 2: Convert to fraction form
    7,109.88/10,666.08 = 2,428.79/x
  3. Step 3: Cross multiply
    7,109.88x = 10,666.08 × 2,428.79
  4. Step 4: Simplify right side
    7,109.88x = 25,905,615.11
  5. Step 5: Solve for x
    x = 25,905,615.11/7,109.88
  6. Step 6: Final answer
    x = 3,643.61

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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.