Home / 3,590.45-5,383.34-1,399.40

Finding the Fourth Proportional to 3,590.45, 5,383.34 and 1,399.40

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Solution

The fourth proportional to 3,590.45, 5,383.34 and 1,399.40 is: 2,098.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.45 : 5,383.34 = 1,399.40 : x
  2. Step 2: Convert to fraction form
    3,590.45/5,383.34 = 1,399.40/x
  3. Step 3: Cross multiply
    3,590.45x = 5,383.34 × 1,399.40
  4. Step 4: Simplify right side
    3,590.45x = 7,533,446.00
  5. Step 5: Solve for x
    x = 7,533,446.00/3,590.45
  6. Step 6: Final answer
    x = 2,098.19

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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.