Home / 2,422.90-3,653.80-2,390.10

Finding the Fourth Proportional to 2,422.90, 3,653.80 and 2,390.10

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Solution

The fourth proportional to 2,422.90, 3,653.80 and 2,390.10 is: 3,604.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.90 : 3,653.80 = 2,390.10 : x
  2. Step 2: Convert to fraction form
    2,422.90/3,653.80 = 2,390.10/x
  3. Step 3: Cross multiply
    2,422.90x = 3,653.80 × 2,390.10
  4. Step 4: Simplify right side
    2,422.90x = 8,732,947.38
  5. Step 5: Solve for x
    x = 8,732,947.38/2,422.90
  6. Step 6: Final answer
    x = 3,604.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.