Home / 3,555.90-5,321.70-3,264.30

Finding the Fourth Proportional to 3,555.90, 5,321.70 and 3,264.30

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Solution

The fourth proportional to 3,555.90, 5,321.70 and 3,264.30 is: 4,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.90 : 5,321.70 = 3,264.30 : x
  2. Step 2: Convert to fraction form
    3,555.90/5,321.70 = 3,264.30/x
  3. Step 3: Cross multiply
    3,555.90x = 5,321.70 × 3,264.30
  4. Step 4: Simplify right side
    3,555.90x = 17,371,625.31
  5. Step 5: Solve for x
    x = 17,371,625.31/3,555.90
  6. Step 6: Final answer
    x = 4,885.30

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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.