Home / 5,392.79-7,440.60-3,155.22

Finding the Fourth Proportional to 5,392.79, 7,440.60 and 3,155.22

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Solution

The fourth proportional to 5,392.79, 7,440.60 and 3,155.22 is: 4,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,392.79 : 7,440.60 = 3,155.22 : x
  2. Step 2: Convert to fraction form
    5,392.79/7,440.60 = 3,155.22/x
  3. Step 3: Cross multiply
    5,392.79x = 7,440.60 × 3,155.22
  4. Step 4: Simplify right side
    5,392.79x = 23,476,696.11
  5. Step 5: Solve for x
    x = 23,476,696.11/5,392.79
  6. Step 6: Final answer
    x = 4,353.35

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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.