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Finding the Fourth Proportional to 7,570.40, 10,447.04 and 4,213.11

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Solution

The fourth proportional to 7,570.40, 10,447.04 and 4,213.11 is: 5,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.40 : 10,447.04 = 4,213.11 : x
  2. Step 2: Convert to fraction form
    7,570.40/10,447.04 = 4,213.11/x
  3. Step 3: Cross multiply
    7,570.40x = 10,447.04 × 4,213.11
  4. Step 4: Simplify right side
    7,570.40x = 44,014,578.40
  5. Step 5: Solve for x
    x = 44,014,578.40/7,570.40
  6. Step 6: Final answer
    x = 5,814.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.