Home / 3,135.92-4,680.98-2,907.50

Finding the Fourth Proportional to 3,135.92, 4,680.98 and 2,907.50

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Solution

The fourth proportional to 3,135.92, 4,680.98 and 2,907.50 is: 4,340.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.92 : 4,680.98 = 2,907.50 : x
  2. Step 2: Convert to fraction form
    3,135.92/4,680.98 = 2,907.50/x
  3. Step 3: Cross multiply
    3,135.92x = 4,680.98 × 2,907.50
  4. Step 4: Simplify right side
    3,135.92x = 13,609,949.35
  5. Step 5: Solve for x
    x = 13,609,949.35/3,135.92
  6. Step 6: Final answer
    x = 4,340.02

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.