Home / 2,126.15-3,184.97-1,688.14

Finding the Fourth Proportional to 2,126.15, 3,184.97 and 1,688.14

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Solution

The fourth proportional to 2,126.15, 3,184.97 and 1,688.14 is: 2,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.15 : 3,184.97 = 1,688.14 : x
  2. Step 2: Convert to fraction form
    2,126.15/3,184.97 = 1,688.14/x
  3. Step 3: Cross multiply
    2,126.15x = 3,184.97 × 1,688.14
  4. Step 4: Simplify right side
    2,126.15x = 5,376,680.29
  5. Step 5: Solve for x
    x = 5,376,680.29/2,126.15
  6. Step 6: Final answer
    x = 2,528.84

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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.