Home / 5,019.70-7,528.20-2,097.40

Finding the Fourth Proportional to 5,019.70, 7,528.20 and 2,097.40

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Solution

The fourth proportional to 5,019.70, 7,528.20 and 2,097.40 is: 3,145.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.70 : 7,528.20 = 2,097.40 : x
  2. Step 2: Convert to fraction form
    5,019.70/7,528.20 = 2,097.40/x
  3. Step 3: Cross multiply
    5,019.70x = 7,528.20 × 2,097.40
  4. Step 4: Simplify right side
    5,019.70x = 15,789,646.68
  5. Step 5: Solve for x
    x = 15,789,646.68/5,019.70
  6. Step 6: Final answer
    x = 3,145.54

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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.