Home / 4,720.20-7,075.65-2,089.14

Finding the Fourth Proportional to 4,720.20, 7,075.65 and 2,089.14

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Solution

The fourth proportional to 4,720.20, 7,075.65 and 2,089.14 is: 3,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.20 : 7,075.65 = 2,089.14 : x
  2. Step 2: Convert to fraction form
    4,720.20/7,075.65 = 2,089.14/x
  3. Step 3: Cross multiply
    4,720.20x = 7,075.65 × 2,089.14
  4. Step 4: Simplify right side
    4,720.20x = 14,782,023.44
  5. Step 5: Solve for x
    x = 14,782,023.44/4,720.20
  6. Step 6: Final answer
    x = 3,131.65

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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.