Home / 8,075.64-12,103.38-2,875.80

Finding the Fourth Proportional to 8,075.64, 12,103.38 and 2,875.80

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Solution

The fourth proportional to 8,075.64, 12,103.38 and 2,875.80 is: 4,310.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.64 : 12,103.38 = 2,875.80 : x
  2. Step 2: Convert to fraction form
    8,075.64/12,103.38 = 2,875.80/x
  3. Step 3: Cross multiply
    8,075.64x = 12,103.38 × 2,875.80
  4. Step 4: Simplify right side
    8,075.64x = 34,806,900.20
  5. Step 5: Solve for x
    x = 34,806,900.20/8,075.64
  6. Step 6: Final answer
    x = 4,310.11

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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.