Home / 4,049.72-6,075.30-1,275.80

Finding the Fourth Proportional to 4,049.72, 6,075.30 and 1,275.80

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Solution

The fourth proportional to 4,049.72, 6,075.30 and 1,275.80 is: 1,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,049.72 : 6,075.30 = 1,275.80 : x
  2. Step 2: Convert to fraction form
    4,049.72/6,075.30 = 1,275.80/x
  3. Step 3: Cross multiply
    4,049.72x = 6,075.30 × 1,275.80
  4. Step 4: Simplify right side
    4,049.72x = 7,750,867.74
  5. Step 5: Solve for x
    x = 7,750,867.74/4,049.72
  6. Step 6: Final answer
    x = 1,913.93

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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.