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Finding the Fourth Proportional to 6,263.46, 8,639.46 and 4,021.79

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Solution

The fourth proportional to 6,263.46, 8,639.46 and 4,021.79 is: 5,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,263.46 : 8,639.46 = 4,021.79 : x
  2. Step 2: Convert to fraction form
    6,263.46/8,639.46 = 4,021.79/x
  3. Step 3: Cross multiply
    6,263.46x = 8,639.46 × 4,021.79
  4. Step 4: Simplify right side
    6,263.46x = 34,746,050.64
  5. Step 5: Solve for x
    x = 34,746,050.64/6,263.46
  6. Step 6: Final answer
    x = 5,547.42

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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.