Home / 2,240.55-3,089.88-1,400.98

Finding the Fourth Proportional to 2,240.55, 3,089.88 and 1,400.98

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Solution

The fourth proportional to 2,240.55, 3,089.88 and 1,400.98 is: 1,932.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.55 : 3,089.88 = 1,400.98 : x
  2. Step 2: Convert to fraction form
    2,240.55/3,089.88 = 1,400.98/x
  3. Step 3: Cross multiply
    2,240.55x = 3,089.88 × 1,400.98
  4. Step 4: Simplify right side
    2,240.55x = 4,328,860.08
  5. Step 5: Solve for x
    x = 4,328,860.08/2,240.55
  6. Step 6: Final answer
    x = 1,932.05

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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.