Home / 1,508.07-2,260.43-777.69

Finding the Fourth Proportional to 1,508.07, 2,260.43 and 777.69

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Solution

The fourth proportional to 1,508.07, 2,260.43 and 777.69 is: 1,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.07 : 2,260.43 = 777.69 : x
  2. Step 2: Convert to fraction form
    1,508.07/2,260.43 = 777.69/x
  3. Step 3: Cross multiply
    1,508.07x = 2,260.43 × 777.69
  4. Step 4: Simplify right side
    1,508.07x = 1,757,909.92
  5. Step 5: Solve for x
    x = 1,757,909.92/1,508.07
  6. Step 6: Final answer
    x = 1,165.67

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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.