Home / 3,973.78-5,484.36-2,402.38

Finding the Fourth Proportional to 3,973.78, 5,484.36 and 2,402.38

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Solution

The fourth proportional to 3,973.78, 5,484.36 and 2,402.38 is: 3,315.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.78 : 5,484.36 = 2,402.38 : x
  2. Step 2: Convert to fraction form
    3,973.78/5,484.36 = 2,402.38/x
  3. Step 3: Cross multiply
    3,973.78x = 5,484.36 × 2,402.38
  4. Step 4: Simplify right side
    3,973.78x = 13,175,516.78
  5. Step 5: Solve for x
    x = 13,175,516.78/3,973.78
  6. Step 6: Final answer
    x = 3,315.61

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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.