Home / 4,815.81-6,639.84-4,057.65

Finding the Fourth Proportional to 4,815.81, 6,639.84 and 4,057.65

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Solution

The fourth proportional to 4,815.81, 6,639.84 and 4,057.65 is: 5,594.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.81 : 6,639.84 = 4,057.65 : x
  2. Step 2: Convert to fraction form
    4,815.81/6,639.84 = 4,057.65/x
  3. Step 3: Cross multiply
    4,815.81x = 6,639.84 × 4,057.65
  4. Step 4: Simplify right side
    4,815.81x = 26,942,146.78
  5. Step 5: Solve for x
    x = 26,942,146.78/4,815.81
  6. Step 6: Final answer
    x = 5,594.52

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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.