Home / 3,075.38-4,614.45-1,320.84

Finding the Fourth Proportional to 3,075.38, 4,614.45 and 1,320.84

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Solution

The fourth proportional to 3,075.38, 4,614.45 and 1,320.84 is: 1,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.38 : 4,614.45 = 1,320.84 : x
  2. Step 2: Convert to fraction form
    3,075.38/4,614.45 = 1,320.84/x
  3. Step 3: Cross multiply
    3,075.38x = 4,614.45 × 1,320.84
  4. Step 4: Simplify right side
    3,075.38x = 6,094,950.14
  5. Step 5: Solve for x
    x = 6,094,950.14/3,075.38
  6. Step 6: Final answer
    x = 1,981.85

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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.