Home / 5,540.32-7,653.52-4,428.64

Finding the Fourth Proportional to 5,540.32, 7,653.52 and 4,428.64

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Solution

The fourth proportional to 5,540.32, 7,653.52 and 4,428.64 is: 6,117.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.32 : 7,653.52 = 4,428.64 : x
  2. Step 2: Convert to fraction form
    5,540.32/7,653.52 = 4,428.64/x
  3. Step 3: Cross multiply
    5,540.32x = 7,653.52 × 4,428.64
  4. Step 4: Simplify right side
    5,540.32x = 33,894,684.81
  5. Step 5: Solve for x
    x = 33,894,684.81/5,540.32
  6. Step 6: Final answer
    x = 6,117.82

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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.