Home / 1,301.57-1,795.87-777.50

Finding the Fourth Proportional to 1,301.57, 1,795.87 and 777.50

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Solution

The fourth proportional to 1,301.57, 1,795.87 and 777.50 is: 1,072.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.57 : 1,795.87 = 777.50 : x
  2. Step 2: Convert to fraction form
    1,301.57/1,795.87 = 777.50/x
  3. Step 3: Cross multiply
    1,301.57x = 1,795.87 × 777.50
  4. Step 4: Simplify right side
    1,301.57x = 1,396,288.93
  5. Step 5: Solve for x
    x = 1,396,288.93/1,301.57
  6. Step 6: Final answer
    x = 1,072.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.