Home / 3,126.83-4,315.98-1,801.41

Finding the Fourth Proportional to 3,126.83, 4,315.98 and 1,801.41

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Solution

The fourth proportional to 3,126.83, 4,315.98 and 1,801.41 is: 2,486.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.83 : 4,315.98 = 1,801.41 : x
  2. Step 2: Convert to fraction form
    3,126.83/4,315.98 = 1,801.41/x
  3. Step 3: Cross multiply
    3,126.83x = 4,315.98 × 1,801.41
  4. Step 4: Simplify right side
    3,126.83x = 7,774,876.52
  5. Step 5: Solve for x
    x = 7,774,876.52/3,126.83
  6. Step 6: Final answer
    x = 2,486.51

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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.