Home / 2,668.24-4,001.91-913.07

Finding the Fourth Proportional to 2,668.24, 4,001.91 and 913.07

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Solution

The fourth proportional to 2,668.24, 4,001.91 and 913.07 is: 1,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.24 : 4,001.91 = 913.07 : x
  2. Step 2: Convert to fraction form
    2,668.24/4,001.91 = 913.07/x
  3. Step 3: Cross multiply
    2,668.24x = 4,001.91 × 913.07
  4. Step 4: Simplify right side
    2,668.24x = 3,654,030.54
  5. Step 5: Solve for x
    x = 3,654,030.54/2,668.24
  6. Step 6: Final answer
    x = 1,369.45

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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.