Home / 3,339.60-5,015.10-1,858.20

Finding the Fourth Proportional to 3,339.60, 5,015.10 and 1,858.20

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Solution

The fourth proportional to 3,339.60, 5,015.10 and 1,858.20 is: 2,790.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.60 : 5,015.10 = 1,858.20 : x
  2. Step 2: Convert to fraction form
    3,339.60/5,015.10 = 1,858.20/x
  3. Step 3: Cross multiply
    3,339.60x = 5,015.10 × 1,858.20
  4. Step 4: Simplify right side
    3,339.60x = 9,319,058.82
  5. Step 5: Solve for x
    x = 9,319,058.82/3,339.60
  6. Step 6: Final answer
    x = 2,790.47

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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.