Home / 2,430.41-3,646.89-1,131.75

Finding the Fourth Proportional to 2,430.41, 3,646.89 and 1,131.75

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Solution

The fourth proportional to 2,430.41, 3,646.89 and 1,131.75 is: 1,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.41 : 3,646.89 = 1,131.75 : x
  2. Step 2: Convert to fraction form
    2,430.41/3,646.89 = 1,131.75/x
  3. Step 3: Cross multiply
    2,430.41x = 3,646.89 × 1,131.75
  4. Step 4: Simplify right side
    2,430.41x = 4,127,367.76
  5. Step 5: Solve for x
    x = 4,127,367.76/2,430.41
  6. Step 6: Final answer
    x = 1,698.22

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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.