Home / 2,864.80-3,953.66-1,605.83

Finding the Fourth Proportional to 2,864.80, 3,953.66 and 1,605.83

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Solution

The fourth proportional to 2,864.80, 3,953.66 and 1,605.83 is: 2,216.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.80 : 3,953.66 = 1,605.83 : x
  2. Step 2: Convert to fraction form
    2,864.80/3,953.66 = 1,605.83/x
  3. Step 3: Cross multiply
    2,864.80x = 3,953.66 × 1,605.83
  4. Step 4: Simplify right side
    2,864.80x = 6,348,920.43
  5. Step 5: Solve for x
    x = 6,348,920.43/2,864.80
  6. Step 6: Final answer
    x = 2,216.18

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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.