Home / 3,508.40-5,265.79-1,866.33

Finding the Fourth Proportional to 3,508.40, 5,265.79 and 1,866.33

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Solution

The fourth proportional to 3,508.40, 5,265.79 and 1,866.33 is: 2,801.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.40 : 5,265.79 = 1,866.33 : x
  2. Step 2: Convert to fraction form
    3,508.40/5,265.79 = 1,866.33/x
  3. Step 3: Cross multiply
    3,508.40x = 5,265.79 × 1,866.33
  4. Step 4: Simplify right side
    3,508.40x = 9,827,701.85
  5. Step 5: Solve for x
    x = 9,827,701.85/3,508.40
  6. Step 6: Final answer
    x = 2,801.19

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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.