Home / 3,486.12-4,815.13-2,605.85

Finding the Fourth Proportional to 3,486.12, 4,815.13 and 2,605.85

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Solution

The fourth proportional to 3,486.12, 4,815.13 and 2,605.85 is: 3,599.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.12 : 4,815.13 = 2,605.85 : x
  2. Step 2: Convert to fraction form
    3,486.12/4,815.13 = 2,605.85/x
  3. Step 3: Cross multiply
    3,486.12x = 4,815.13 × 2,605.85
  4. Step 4: Simplify right side
    3,486.12x = 12,547,498.86
  5. Step 5: Solve for x
    x = 12,547,498.86/3,486.12
  6. Step 6: Final answer
    x = 3,599.28

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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.