Home / 2,075.16-3,112.08-614.70

Finding the Fourth Proportional to 2,075.16, 3,112.08 and 614.70

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Solution

The fourth proportional to 2,075.16, 3,112.08 and 614.70 is: 921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.16 : 3,112.08 = 614.70 : x
  2. Step 2: Convert to fraction form
    2,075.16/3,112.08 = 614.70/x
  3. Step 3: Cross multiply
    2,075.16x = 3,112.08 × 614.70
  4. Step 4: Simplify right side
    2,075.16x = 1,912,995.58
  5. Step 5: Solve for x
    x = 1,912,995.58/2,075.16
  6. Step 6: Final answer
    x = 921.85

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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.