Home / 1,609.75-2,219.56-1,084.87

Finding the Fourth Proportional to 1,609.75, 2,219.56 and 1,084.87

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Solution

The fourth proportional to 1,609.75, 2,219.56 and 1,084.87 is: 1,495.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.75 : 2,219.56 = 1,084.87 : x
  2. Step 2: Convert to fraction form
    1,609.75/2,219.56 = 1,084.87/x
  3. Step 3: Cross multiply
    1,609.75x = 2,219.56 × 1,084.87
  4. Step 4: Simplify right side
    1,609.75x = 2,407,934.06
  5. Step 5: Solve for x
    x = 2,407,934.06/1,609.75
  6. Step 6: Final answer
    x = 1,495.84

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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.