Home / 3,207.66-4,815.40-2,518.70

Finding the Fourth Proportional to 3,207.66, 4,815.40 and 2,518.70

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Solution

The fourth proportional to 3,207.66, 4,815.40 and 2,518.70 is: 3,781.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.66 : 4,815.40 = 2,518.70 : x
  2. Step 2: Convert to fraction form
    3,207.66/4,815.40 = 2,518.70/x
  3. Step 3: Cross multiply
    3,207.66x = 4,815.40 × 2,518.70
  4. Step 4: Simplify right side
    3,207.66x = 12,128,547.98
  5. Step 5: Solve for x
    x = 12,128,547.98/3,207.66
  6. Step 6: Final answer
    x = 3,781.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.