Home / 7,020.74-10,529.66-2,638.10

Finding the Fourth Proportional to 7,020.74, 10,529.66 and 2,638.10

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Solution

The fourth proportional to 7,020.74, 10,529.66 and 2,638.10 is: 3,956.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.74 : 10,529.66 = 2,638.10 : x
  2. Step 2: Convert to fraction form
    7,020.74/10,529.66 = 2,638.10/x
  3. Step 3: Cross multiply
    7,020.74x = 10,529.66 × 2,638.10
  4. Step 4: Simplify right side
    7,020.74x = 27,778,296.05
  5. Step 5: Solve for x
    x = 27,778,296.05/7,020.74
  6. Step 6: Final answer
    x = 3,956.61

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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.