Home / 3,075.28-4,612.96-1,431.36

Finding the Fourth Proportional to 3,075.28, 4,612.96 and 1,431.36

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Solution

The fourth proportional to 3,075.28, 4,612.96 and 1,431.36 is: 2,147.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.28 : 4,612.96 = 1,431.36 : x
  2. Step 2: Convert to fraction form
    3,075.28/4,612.96 = 1,431.36/x
  3. Step 3: Cross multiply
    3,075.28x = 4,612.96 × 1,431.36
  4. Step 4: Simplify right side
    3,075.28x = 6,602,806.43
  5. Step 5: Solve for x
    x = 6,602,806.43/3,075.28
  6. Step 6: Final answer
    x = 2,147.06

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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.