Home / 2,127.12-3,166.77-2,116.82

Finding the Fourth Proportional to 2,127.12, 3,166.77 and 2,116.82

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Solution

The fourth proportional to 2,127.12, 3,166.77 and 2,116.82 is: 3,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.12 : 3,166.77 = 2,116.82 : x
  2. Step 2: Convert to fraction form
    2,127.12/3,166.77 = 2,116.82/x
  3. Step 3: Cross multiply
    2,127.12x = 3,166.77 × 2,116.82
  4. Step 4: Simplify right side
    2,127.12x = 6,703,482.07
  5. Step 5: Solve for x
    x = 6,703,482.07/2,127.12
  6. Step 6: Final answer
    x = 3,151.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.