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Finding the Fourth Proportional to 7,385.01, 10,193.79 and 4,401.78

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Solution

The fourth proportional to 7,385.01, 10,193.79 and 4,401.78 is: 6,075.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.01 : 10,193.79 = 4,401.78 : x
  2. Step 2: Convert to fraction form
    7,385.01/10,193.79 = 4,401.78/x
  3. Step 3: Cross multiply
    7,385.01x = 10,193.79 × 4,401.78
  4. Step 4: Simplify right side
    7,385.01x = 44,870,820.95
  5. Step 5: Solve for x
    x = 44,870,820.95/7,385.01
  6. Step 6: Final answer
    x = 6,075.93

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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.