Home / 2,706.06-3,730.28-2,115.57

Finding the Fourth Proportional to 2,706.06, 3,730.28 and 2,115.57

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Solution

The fourth proportional to 2,706.06, 3,730.28 and 2,115.57 is: 2,916.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,706.06 : 3,730.28 = 2,115.57 : x
  2. Step 2: Convert to fraction form
    2,706.06/3,730.28 = 2,115.57/x
  3. Step 3: Cross multiply
    2,706.06x = 3,730.28 × 2,115.57
  4. Step 4: Simplify right side
    2,706.06x = 7,891,656.84
  5. Step 5: Solve for x
    x = 7,891,656.84/2,706.06
  6. Step 6: Final answer
    x = 2,916.29

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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.