Home / 3,530.80-5,295.30-1,886.50

Finding the Fourth Proportional to 3,530.80, 5,295.30 and 1,886.50

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Solution

The fourth proportional to 3,530.80, 5,295.30 and 1,886.50 is: 2,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.80 : 5,295.30 = 1,886.50 : x
  2. Step 2: Convert to fraction form
    3,530.80/5,295.30 = 1,886.50/x
  3. Step 3: Cross multiply
    3,530.80x = 5,295.30 × 1,886.50
  4. Step 4: Simplify right side
    3,530.80x = 9,989,583.45
  5. Step 5: Solve for x
    x = 9,989,583.45/3,530.80
  6. Step 6: Final answer
    x = 2,829.27

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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.