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Finding the Fourth Proportional to 3,569.19, 5,354.18 and 1,490.19

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Solution

The fourth proportional to 3,569.19, 5,354.18 and 1,490.19 is: 2,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,569.19 : 5,354.18 = 1,490.19 : x
  2. Step 2: Convert to fraction form
    3,569.19/5,354.18 = 1,490.19/x
  3. Step 3: Cross multiply
    3,569.19x = 5,354.18 × 1,490.19
  4. Step 4: Simplify right side
    3,569.19x = 7,978,745.49
  5. Step 5: Solve for x
    x = 7,978,745.49/3,569.19
  6. Step 6: Final answer
    x = 2,235.45

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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.