Home / 3,620.15-5,430.62-1,154.10

Finding the Fourth Proportional to 3,620.15, 5,430.62 and 1,154.10

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Solution

The fourth proportional to 3,620.15, 5,430.62 and 1,154.10 is: 1,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.15 : 5,430.62 = 1,154.10 : x
  2. Step 2: Convert to fraction form
    3,620.15/5,430.62 = 1,154.10/x
  3. Step 3: Cross multiply
    3,620.15x = 5,430.62 × 1,154.10
  4. Step 4: Simplify right side
    3,620.15x = 6,267,478.54
  5. Step 5: Solve for x
    x = 6,267,478.54/3,620.15
  6. Step 6: Final answer
    x = 1,731.28

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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.