Home / 3,335.90-5,000.43-1,687.45

Finding the Fourth Proportional to 3,335.90, 5,000.43 and 1,687.45

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Solution

The fourth proportional to 3,335.90, 5,000.43 and 1,687.45 is: 2,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.90 : 5,000.43 = 1,687.45 : x
  2. Step 2: Convert to fraction form
    3,335.90/5,000.43 = 1,687.45/x
  3. Step 3: Cross multiply
    3,335.90x = 5,000.43 × 1,687.45
  4. Step 4: Simplify right side
    3,335.90x = 8,437,975.60
  5. Step 5: Solve for x
    x = 8,437,975.60/3,335.90
  6. Step 6: Final answer
    x = 2,529.45

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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.