Home / 7,479.12-11,219.13-2,798.03

Finding the Fourth Proportional to 7,479.12, 11,219.13 and 2,798.03

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Solution

The fourth proportional to 7,479.12, 11,219.13 and 2,798.03 is: 4,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.12 : 11,219.13 = 2,798.03 : x
  2. Step 2: Convert to fraction form
    7,479.12/11,219.13 = 2,798.03/x
  3. Step 3: Cross multiply
    7,479.12x = 11,219.13 × 2,798.03
  4. Step 4: Simplify right side
    7,479.12x = 31,391,406.22
  5. Step 5: Solve for x
    x = 31,391,406.22/7,479.12
  6. Step 6: Final answer
    x = 4,197.21

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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.