Home / 4,775.50-7,163.68-1,312.76

Finding the Fourth Proportional to 4,775.50, 7,163.68 and 1,312.76

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Solution

The fourth proportional to 4,775.50, 7,163.68 and 1,312.76 is: 1,969.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.50 : 7,163.68 = 1,312.76 : x
  2. Step 2: Convert to fraction form
    4,775.50/7,163.68 = 1,312.76/x
  3. Step 3: Cross multiply
    4,775.50x = 7,163.68 × 1,312.76
  4. Step 4: Simplify right side
    4,775.50x = 9,404,192.56
  5. Step 5: Solve for x
    x = 9,404,192.56/4,775.50
  6. Step 6: Final answer
    x = 1,969.26

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Double scale
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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.