Home / 2,702.52-4,053.78-2,087.12

Finding the Fourth Proportional to 2,702.52, 4,053.78 and 2,087.12

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Solution

The fourth proportional to 2,702.52, 4,053.78 and 2,087.12 is: 3,130.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.52 : 4,053.78 = 2,087.12 : x
  2. Step 2: Convert to fraction form
    2,702.52/4,053.78 = 2,087.12/x
  3. Step 3: Cross multiply
    2,702.52x = 4,053.78 × 2,087.12
  4. Step 4: Simplify right side
    2,702.52x = 8,460,725.31
  5. Step 5: Solve for x
    x = 8,460,725.31/2,702.52
  6. Step 6: Final answer
    x = 3,130.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.