Home / 3,569.64-5,355.99-1,490.05

Finding the Fourth Proportional to 3,569.64, 5,355.99 and 1,490.05

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Solution

The fourth proportional to 3,569.64, 5,355.99 and 1,490.05 is: 2,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,569.64 : 5,355.99 = 1,490.05 : x
  2. Step 2: Convert to fraction form
    3,569.64/5,355.99 = 1,490.05/x
  3. Step 3: Cross multiply
    3,569.64x = 5,355.99 × 1,490.05
  4. Step 4: Simplify right side
    3,569.64x = 7,980,692.90
  5. Step 5: Solve for x
    x = 7,980,692.90/3,569.64
  6. Step 6: Final answer
    x = 2,235.71

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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.