Home / 3,590.16-5,385.72-1,399.56

Finding the Fourth Proportional to 3,590.16, 5,385.72 and 1,399.56

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Solution

The fourth proportional to 3,590.16, 5,385.72 and 1,399.56 is: 2,099.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.16 : 5,385.72 = 1,399.56 : x
  2. Step 2: Convert to fraction form
    3,590.16/5,385.72 = 1,399.56/x
  3. Step 3: Cross multiply
    3,590.16x = 5,385.72 × 1,399.56
  4. Step 4: Simplify right side
    3,590.16x = 7,537,638.28
  5. Step 5: Solve for x
    x = 7,537,638.28/3,590.16
  6. Step 6: Final answer
    x = 2,099.53

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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.