Home / 5,087.40-7,614.90-3,629.40

Finding the Fourth Proportional to 5,087.40, 7,614.90 and 3,629.40

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Solution

The fourth proportional to 5,087.40, 7,614.90 and 3,629.40 is: 5,432.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.40 : 7,614.90 = 3,629.40 : x
  2. Step 2: Convert to fraction form
    5,087.40/7,614.90 = 3,629.40/x
  3. Step 3: Cross multiply
    5,087.40x = 7,614.90 × 3,629.40
  4. Step 4: Simplify right side
    5,087.40x = 27,637,518.06
  5. Step 5: Solve for x
    x = 27,637,518.06/5,087.40
  6. Step 6: Final answer
    x = 5,432.54

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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.