Home / 2,075.28-3,111.81-614.22

Finding the Fourth Proportional to 2,075.28, 3,111.81 and 614.22

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Solution

The fourth proportional to 2,075.28, 3,111.81 and 614.22 is: 921.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.28 : 3,111.81 = 614.22 : x
  2. Step 2: Convert to fraction form
    2,075.28/3,111.81 = 614.22/x
  3. Step 3: Cross multiply
    2,075.28x = 3,111.81 × 614.22
  4. Step 4: Simplify right side
    2,075.28x = 1,911,335.94
  5. Step 5: Solve for x
    x = 1,911,335.94/2,075.28
  6. Step 6: Final answer
    x = 921.00

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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.