Home / 3,619.38-5,429.16-1,770.24

Finding the Fourth Proportional to 3,619.38, 5,429.16 and 1,770.24

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Solution

The fourth proportional to 3,619.38, 5,429.16 and 1,770.24 is: 2,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.38 : 5,429.16 = 1,770.24 : x
  2. Step 2: Convert to fraction form
    3,619.38/5,429.16 = 1,770.24/x
  3. Step 3: Cross multiply
    3,619.38x = 5,429.16 × 1,770.24
  4. Step 4: Simplify right side
    3,619.38x = 9,610,916.20
  5. Step 5: Solve for x
    x = 9,610,916.20/3,619.38
  6. Step 6: Final answer
    x = 2,655.40

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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.