Home / 5,275.37-7,912.78-1,577.63

Finding the Fourth Proportional to 5,275.37, 7,912.78 and 1,577.63

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Solution

The fourth proportional to 5,275.37, 7,912.78 and 1,577.63 is: 2,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.37 : 7,912.78 = 1,577.63 : x
  2. Step 2: Convert to fraction form
    5,275.37/7,912.78 = 1,577.63/x
  3. Step 3: Cross multiply
    5,275.37x = 7,912.78 × 1,577.63
  4. Step 4: Simplify right side
    5,275.37x = 12,483,439.11
  5. Step 5: Solve for x
    x = 12,483,439.11/5,275.37
  6. Step 6: Final answer
    x = 2,366.36

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Similar ratio
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1.5x scale

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.