Home / 2,864.80-3,953.26-1,605.77

Finding the Fourth Proportional to 2,864.80, 3,953.26 and 1,605.77

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Solution

The fourth proportional to 2,864.80, 3,953.26 and 1,605.77 is: 2,215.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.80 : 3,953.26 = 1,605.77 : x
  2. Step 2: Convert to fraction form
    2,864.80/3,953.26 = 1,605.77/x
  3. Step 3: Cross multiply
    2,864.80x = 3,953.26 × 1,605.77
  4. Step 4: Simplify right side
    2,864.80x = 6,348,026.31
  5. Step 5: Solve for x
    x = 6,348,026.31/2,864.80
  6. Step 6: Final answer
    x = 2,215.87

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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.