Home / 2,390.23-3,299.53-2,240.77

Finding the Fourth Proportional to 2,390.23, 3,299.53 and 2,240.77

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Solution

The fourth proportional to 2,390.23, 3,299.53 and 2,240.77 is: 3,093.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.23 : 3,299.53 = 2,240.77 : x
  2. Step 2: Convert to fraction form
    2,390.23/3,299.53 = 2,240.77/x
  3. Step 3: Cross multiply
    2,390.23x = 3,299.53 × 2,240.77
  4. Step 4: Simplify right side
    2,390.23x = 7,393,476.63
  5. Step 5: Solve for x
    x = 7,393,476.63/2,390.23
  6. Step 6: Final answer
    x = 3,093.21

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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.