Home / 3,192.58-4,407.31-2,130.98

Finding the Fourth Proportional to 3,192.58, 4,407.31 and 2,130.98

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Solution

The fourth proportional to 3,192.58, 4,407.31 and 2,130.98 is: 2,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.58 : 4,407.31 = 2,130.98 : x
  2. Step 2: Convert to fraction form
    3,192.58/4,407.31 = 2,130.98/x
  3. Step 3: Cross multiply
    3,192.58x = 4,407.31 × 2,130.98
  4. Step 4: Simplify right side
    3,192.58x = 9,391,870.09
  5. Step 5: Solve for x
    x = 9,391,870.09/3,192.58
  6. Step 6: Final answer
    x = 2,941.78

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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.