Home / 2,954.47-4,073.39-2,421.39

Finding the Fourth Proportional to 2,954.47, 4,073.39 and 2,421.39

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Solution

The fourth proportional to 2,954.47, 4,073.39 and 2,421.39 is: 3,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.47 : 4,073.39 = 2,421.39 : x
  2. Step 2: Convert to fraction form
    2,954.47/4,073.39 = 2,421.39/x
  3. Step 3: Cross multiply
    2,954.47x = 4,073.39 × 2,421.39
  4. Step 4: Simplify right side
    2,954.47x = 9,863,265.81
  5. Step 5: Solve for x
    x = 9,863,265.81/2,954.47
  6. Step 6: Final answer
    x = 3,338.42

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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.