Home / 3,075.85-4,615.53-1,671.31

Finding the Fourth Proportional to 3,075.85, 4,615.53 and 1,671.31

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Solution

The fourth proportional to 3,075.85, 4,615.53 and 1,671.31 is: 2,507.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.85 : 4,615.53 = 1,671.31 : x
  2. Step 2: Convert to fraction form
    3,075.85/4,615.53 = 1,671.31/x
  3. Step 3: Cross multiply
    3,075.85x = 4,615.53 × 1,671.31
  4. Step 4: Simplify right side
    3,075.85x = 7,713,981.44
  5. Step 5: Solve for x
    x = 7,713,981.44/3,075.85
  6. Step 6: Final answer
    x = 2,507.92

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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.