Home / 2,430.29-3,645.80-1,197.78

Finding the Fourth Proportional to 2,430.29, 3,645.80 and 1,197.78

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Solution

The fourth proportional to 2,430.29, 3,645.80 and 1,197.78 is: 1,796.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.29 : 3,645.80 = 1,197.78 : x
  2. Step 2: Convert to fraction form
    2,430.29/3,645.80 = 1,197.78/x
  3. Step 3: Cross multiply
    2,430.29x = 3,645.80 × 1,197.78
  4. Step 4: Simplify right side
    2,430.29x = 4,366,860.34
  5. Step 5: Solve for x
    x = 4,366,860.34/2,430.29
  6. Step 6: Final answer
    x = 1,796.85

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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.