Home / 5,019.40-7,529.10-2,686.60

Finding the Fourth Proportional to 5,019.40, 7,529.10 and 2,686.60

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Solution

The fourth proportional to 5,019.40, 7,529.10 and 2,686.60 is: 4,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.40 : 7,529.10 = 2,686.60 : x
  2. Step 2: Convert to fraction form
    5,019.40/7,529.10 = 2,686.60/x
  3. Step 3: Cross multiply
    5,019.40x = 7,529.10 × 2,686.60
  4. Step 4: Simplify right side
    5,019.40x = 20,227,680.06
  5. Step 5: Solve for x
    x = 20,227,680.06/5,019.40
  6. Step 6: Final answer
    x = 4,029.90

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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.