Home / 5,358.63-7,394.83-3,121.81

Finding the Fourth Proportional to 5,358.63, 7,394.83 and 3,121.81

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Solution

The fourth proportional to 5,358.63, 7,394.83 and 3,121.81 is: 4,308.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.63 : 7,394.83 = 3,121.81 : x
  2. Step 2: Convert to fraction form
    5,358.63/7,394.83 = 3,121.81/x
  3. Step 3: Cross multiply
    5,358.63x = 7,394.83 × 3,121.81
  4. Step 4: Simplify right side
    5,358.63x = 23,085,254.24
  5. Step 5: Solve for x
    x = 23,085,254.24/5,358.63
  6. Step 6: Final answer
    x = 4,308.05

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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.