Home / 2,511.79-3,786.95-2,342.40

Finding the Fourth Proportional to 2,511.79, 3,786.95 and 2,342.40

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Solution

The fourth proportional to 2,511.79, 3,786.95 and 2,342.40 is: 3,531.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.79 : 3,786.95 = 2,342.40 : x
  2. Step 2: Convert to fraction form
    2,511.79/3,786.95 = 2,342.40/x
  3. Step 3: Cross multiply
    2,511.79x = 3,786.95 × 2,342.40
  4. Step 4: Simplify right side
    2,511.79x = 8,870,551.68
  5. Step 5: Solve for x
    x = 8,870,551.68/2,511.79
  6. Step 6: Final answer
    x = 3,531.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.