Home / 2,341.23-3,230.84-1,278.98

Finding the Fourth Proportional to 2,341.23, 3,230.84 and 1,278.98

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Solution

The fourth proportional to 2,341.23, 3,230.84 and 1,278.98 is: 1,764.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.23 : 3,230.84 = 1,278.98 : x
  2. Step 2: Convert to fraction form
    2,341.23/3,230.84 = 1,278.98/x
  3. Step 3: Cross multiply
    2,341.23x = 3,230.84 × 1,278.98
  4. Step 4: Simplify right side
    2,341.23x = 4,132,157.19
  5. Step 5: Solve for x
    x = 4,132,157.19/2,341.23
  6. Step 6: Final answer
    x = 1,764.95

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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.