Home / 2,822.99-3,895.29-1,643.63

Finding the Fourth Proportional to 2,822.99, 3,895.29 and 1,643.63

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Solution

The fourth proportional to 2,822.99, 3,895.29 and 1,643.63 is: 2,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.99 : 3,895.29 = 1,643.63 : x
  2. Step 2: Convert to fraction form
    2,822.99/3,895.29 = 1,643.63/x
  3. Step 3: Cross multiply
    2,822.99x = 3,895.29 × 1,643.63
  4. Step 4: Simplify right side
    2,822.99x = 6,402,396.03
  5. Step 5: Solve for x
    x = 6,402,396.03/2,822.99
  6. Step 6: Final answer
    x = 2,267.95

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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.