Home / 3,594.40-5,389.68-1,128.58

Finding the Fourth Proportional to 3,594.40, 5,389.68 and 1,128.58

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Solution

The fourth proportional to 3,594.40, 5,389.68 and 1,128.58 is: 1,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,594.40 : 5,389.68 = 1,128.58 : x
  2. Step 2: Convert to fraction form
    3,594.40/5,389.68 = 1,128.58/x
  3. Step 3: Cross multiply
    3,594.40x = 5,389.68 × 1,128.58
  4. Step 4: Simplify right side
    3,594.40x = 6,082,685.05
  5. Step 5: Solve for x
    x = 6,082,685.05/3,594.40
  6. Step 6: Final answer
    x = 1,692.27

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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.