Home / 3,605.12-4,976.74-2,543.76

Finding the Fourth Proportional to 3,605.12, 4,976.74 and 2,543.76

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Solution

The fourth proportional to 3,605.12, 4,976.74 and 2,543.76 is: 3,511.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.12 : 4,976.74 = 2,543.76 : x
  2. Step 2: Convert to fraction form
    3,605.12/4,976.74 = 2,543.76/x
  3. Step 3: Cross multiply
    3,605.12x = 4,976.74 × 2,543.76
  4. Step 4: Simplify right side
    3,605.12x = 12,659,632.14
  5. Step 5: Solve for x
    x = 12,659,632.14/3,605.12
  6. Step 6: Final answer
    x = 3,511.57

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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.