Home / 3,511.97-5,266.47-1,430.55

Finding the Fourth Proportional to 3,511.97, 5,266.47 and 1,430.55

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Solution

The fourth proportional to 3,511.97, 5,266.47 and 1,430.55 is: 2,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.97 : 5,266.47 = 1,430.55 : x
  2. Step 2: Convert to fraction form
    3,511.97/5,266.47 = 1,430.55/x
  3. Step 3: Cross multiply
    3,511.97x = 5,266.47 × 1,430.55
  4. Step 4: Simplify right side
    3,511.97x = 7,533,948.66
  5. Step 5: Solve for x
    x = 7,533,948.66/3,511.97
  6. Step 6: Final answer
    x = 2,145.22

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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.