Home / 6,428.35-8,863.86-4,440.34

Finding the Fourth Proportional to 6,428.35, 8,863.86 and 4,440.34

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Solution

The fourth proportional to 6,428.35, 8,863.86 and 4,440.34 is: 6,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.35 : 8,863.86 = 4,440.34 : x
  2. Step 2: Convert to fraction form
    6,428.35/8,863.86 = 4,440.34/x
  3. Step 3: Cross multiply
    6,428.35x = 8,863.86 × 4,440.34
  4. Step 4: Simplify right side
    6,428.35x = 39,358,552.11
  5. Step 5: Solve for x
    x = 39,358,552.11/6,428.35
  6. Step 6: Final answer
    x = 6,122.65

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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.