Home / 4,813.12-7,220.70-1,525.78

Finding the Fourth Proportional to 4,813.12, 7,220.70 and 1,525.78

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Solution

The fourth proportional to 4,813.12, 7,220.70 and 1,525.78 is: 2,288.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.12 : 7,220.70 = 1,525.78 : x
  2. Step 2: Convert to fraction form
    4,813.12/7,220.70 = 1,525.78/x
  3. Step 3: Cross multiply
    4,813.12x = 7,220.70 × 1,525.78
  4. Step 4: Simplify right side
    4,813.12x = 11,017,199.65
  5. Step 5: Solve for x
    x = 11,017,199.65/4,813.12
  6. Step 6: Final answer
    x = 2,288.99

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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.