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Finding the Fourth Proportional to 7,041.78, 10,536.24 and 4,220.25

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Solution

The fourth proportional to 7,041.78, 10,536.24 and 4,220.25 is: 6,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.78 : 10,536.24 = 4,220.25 : x
  2. Step 2: Convert to fraction form
    7,041.78/10,536.24 = 4,220.25/x
  3. Step 3: Cross multiply
    7,041.78x = 10,536.24 × 4,220.25
  4. Step 4: Simplify right side
    7,041.78x = 44,465,566.86
  5. Step 5: Solve for x
    x = 44,465,566.86/7,041.78
  6. Step 6: Final answer
    x = 6,314.54

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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.