Home / 4,815.35-6,650.91-4,185.68

Finding the Fourth Proportional to 4,815.35, 6,650.91 and 4,185.68

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Solution

The fourth proportional to 4,815.35, 6,650.91 and 4,185.68 is: 5,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.35 : 6,650.91 = 4,185.68 : x
  2. Step 2: Convert to fraction form
    4,815.35/6,650.91 = 4,185.68/x
  3. Step 3: Cross multiply
    4,815.35x = 6,650.91 × 4,185.68
  4. Step 4: Simplify right side
    4,815.35x = 27,838,547.71
  5. Step 5: Solve for x
    x = 27,838,547.71/4,815.35
  6. Step 6: Final answer
    x = 5,781.21

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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.