Home / 2,610.90-3,603.78-1,863.66

Finding the Fourth Proportional to 2,610.90, 3,603.78 and 1,863.66

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Solution

The fourth proportional to 2,610.90, 3,603.78 and 1,863.66 is: 2,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,610.90 : 3,603.78 = 1,863.66 : x
  2. Step 2: Convert to fraction form
    2,610.90/3,603.78 = 1,863.66/x
  3. Step 3: Cross multiply
    2,610.90x = 3,603.78 × 1,863.66
  4. Step 4: Simplify right side
    2,610.90x = 6,716,220.63
  5. Step 5: Solve for x
    x = 6,716,220.63/2,610.90
  6. Step 6: Final answer
    x = 2,572.38

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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.