Home / 2,715.79-3,747.32-1,668.19

Finding the Fourth Proportional to 2,715.79, 3,747.32 and 1,668.19

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Solution

The fourth proportional to 2,715.79, 3,747.32 and 1,668.19 is: 2,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.79 : 3,747.32 = 1,668.19 : x
  2. Step 2: Convert to fraction form
    2,715.79/3,747.32 = 1,668.19/x
  3. Step 3: Cross multiply
    2,715.79x = 3,747.32 × 1,668.19
  4. Step 4: Simplify right side
    2,715.79x = 6,251,233.41
  5. Step 5: Solve for x
    x = 6,251,233.41/2,715.79
  6. Step 6: Final answer
    x = 2,301.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.