Home / 2,799.63-3,860.93-2,168.14

Finding the Fourth Proportional to 2,799.63, 3,860.93 and 2,168.14

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Solution

The fourth proportional to 2,799.63, 3,860.93 and 2,168.14 is: 2,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.63 : 3,860.93 = 2,168.14 : x
  2. Step 2: Convert to fraction form
    2,799.63/3,860.93 = 2,168.14/x
  3. Step 3: Cross multiply
    2,799.63x = 3,860.93 × 2,168.14
  4. Step 4: Simplify right side
    2,799.63x = 8,371,036.77
  5. Step 5: Solve for x
    x = 8,371,036.77/2,799.63
  6. Step 6: Final answer
    x = 2,990.05

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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.