Home / 5,009.88-7,512.30-2,087.40

Finding the Fourth Proportional to 5,009.88, 7,512.30 and 2,087.40

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Solution

The fourth proportional to 5,009.88, 7,512.30 and 2,087.40 is: 3,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,009.88 : 7,512.30 = 2,087.40 : x
  2. Step 2: Convert to fraction form
    5,009.88/7,512.30 = 2,087.40/x
  3. Step 3: Cross multiply
    5,009.88x = 7,512.30 × 2,087.40
  4. Step 4: Simplify right side
    5,009.88x = 15,681,175.02
  5. Step 5: Solve for x
    x = 15,681,175.02/5,009.88
  6. Step 6: Final answer
    x = 3,130.05

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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.