Home / 3,144.72-4,339.74-1,886.70

Finding the Fourth Proportional to 3,144.72, 4,339.74 and 1,886.70

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Solution

The fourth proportional to 3,144.72, 4,339.74 and 1,886.70 is: 2,603.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.72 : 4,339.74 = 1,886.70 : x
  2. Step 2: Convert to fraction form
    3,144.72/4,339.74 = 1,886.70/x
  3. Step 3: Cross multiply
    3,144.72x = 4,339.74 × 1,886.70
  4. Step 4: Simplify right side
    3,144.72x = 8,187,787.46
  5. Step 5: Solve for x
    x = 8,187,787.46/3,144.72
  6. Step 6: Final answer
    x = 2,603.66

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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.