Home / 3,970.47-5,476.91-3,301.55

Finding the Fourth Proportional to 3,970.47, 5,476.91 and 3,301.55

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Solution

The fourth proportional to 3,970.47, 5,476.91 and 3,301.55 is: 4,554.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.47 : 5,476.91 = 3,301.55 : x
  2. Step 2: Convert to fraction form
    3,970.47/5,476.91 = 3,301.55/x
  3. Step 3: Cross multiply
    3,970.47x = 5,476.91 × 3,301.55
  4. Step 4: Simplify right side
    3,970.47x = 18,082,292.21
  5. Step 5: Solve for x
    x = 18,082,292.21/3,970.47
  6. Step 6: Final answer
    x = 4,554.19

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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.