Home / 5,629.56-7,768-3,392.32

Finding the Fourth Proportional to 5,629.56, 7,768 and 3,392.32

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Solution

The fourth proportional to 5,629.56, 7,768 and 3,392.32 is: 4,680.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.56 : 7,768 = 3,392.32 : x
  2. Step 2: Convert to fraction form
    5,629.56/7,768 = 3,392.32/x
  3. Step 3: Cross multiply
    5,629.56x = 7,768 × 3,392.32
  4. Step 4: Simplify right side
    5,629.56x = 26,351,541.76
  5. Step 5: Solve for x
    x = 26,351,541.76/5,629.56
  6. Step 6: Final answer
    x = 4,680.92

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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.