Home / 2,619.06-3,613.58-1,688.10

Finding the Fourth Proportional to 2,619.06, 3,613.58 and 1,688.10

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Solution

The fourth proportional to 2,619.06, 3,613.58 and 1,688.10 is: 2,329.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.06 : 3,613.58 = 1,688.10 : x
  2. Step 2: Convert to fraction form
    2,619.06/3,613.58 = 1,688.10/x
  3. Step 3: Cross multiply
    2,619.06x = 3,613.58 × 1,688.10
  4. Step 4: Simplify right side
    2,619.06x = 6,100,084.40
  5. Step 5: Solve for x
    x = 6,100,084.40/2,619.06
  6. Step 6: Final answer
    x = 2,329.11

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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.