Home / 4,808.90-7,212.63-1,521.57

Finding the Fourth Proportional to 4,808.90, 7,212.63 and 1,521.57

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Solution

The fourth proportional to 4,808.90, 7,212.63 and 1,521.57 is: 2,282.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,808.90 : 7,212.63 = 1,521.57 : x
  2. Step 2: Convert to fraction form
    4,808.90/7,212.63 = 1,521.57/x
  3. Step 3: Cross multiply
    4,808.90x = 7,212.63 × 1,521.57
  4. Step 4: Simplify right side
    4,808.90x = 10,974,516.22
  5. Step 5: Solve for x
    x = 10,974,516.22/4,808.90
  6. Step 6: Final answer
    x = 2,282.12

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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.