Home / 1,975.48-2,961.06-1,245.40

Finding the Fourth Proportional to 1,975.48, 2,961.06 and 1,245.40

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Solution

The fourth proportional to 1,975.48, 2,961.06 and 1,245.40 is: 1,866.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.48 : 2,961.06 = 1,245.40 : x
  2. Step 2: Convert to fraction form
    1,975.48/2,961.06 = 1,245.40/x
  3. Step 3: Cross multiply
    1,975.48x = 2,961.06 × 1,245.40
  4. Step 4: Simplify right side
    1,975.48x = 3,687,704.12
  5. Step 5: Solve for x
    x = 3,687,704.12/1,975.48
  6. Step 6: Final answer
    x = 1,866.74

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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.