Home / 7,475.16-11,217.09-2,798.39

Finding the Fourth Proportional to 7,475.16, 11,217.09 and 2,798.39

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Solution

The fourth proportional to 7,475.16, 11,217.09 and 2,798.39 is: 4,199.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.16 : 11,217.09 = 2,798.39 : x
  2. Step 2: Convert to fraction form
    7,475.16/11,217.09 = 2,798.39/x
  3. Step 3: Cross multiply
    7,475.16x = 11,217.09 × 2,798.39
  4. Step 4: Simplify right side
    7,475.16x = 31,389,792.49
  5. Step 5: Solve for x
    x = 31,389,792.49/7,475.16
  6. Step 6: Final answer
    x = 4,199.21

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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.