Home / 3,116.52-4,290.98-2,643.44

Finding the Fourth Proportional to 3,116.52, 4,290.98 and 2,643.44

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Solution

The fourth proportional to 3,116.52, 4,290.98 and 2,643.44 is: 3,639.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.52 : 4,290.98 = 2,643.44 : x
  2. Step 2: Convert to fraction form
    3,116.52/4,290.98 = 2,643.44/x
  3. Step 3: Cross multiply
    3,116.52x = 4,290.98 × 2,643.44
  4. Step 4: Simplify right side
    3,116.52x = 11,342,913.50
  5. Step 5: Solve for x
    x = 11,342,913.50/3,116.52
  6. Step 6: Final answer
    x = 3,639.61

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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.