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Finding the Fourth Proportional to 2,702.85, 3,726.86 and 2,203.94

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Solution

The fourth proportional to 2,702.85, 3,726.86 and 2,203.94 is: 3,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.85 : 3,726.86 = 2,203.94 : x
  2. Step 2: Convert to fraction form
    2,702.85/3,726.86 = 2,203.94/x
  3. Step 3: Cross multiply
    2,702.85x = 3,726.86 × 2,203.94
  4. Step 4: Simplify right side
    2,702.85x = 8,213,746.17
  5. Step 5: Solve for x
    x = 8,213,746.17/2,702.85
  6. Step 6: Final answer
    x = 3,038.92

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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.