Home / 1,571.24-2,356.18-790.76

Finding the Fourth Proportional to 1,571.24, 2,356.18 and 790.76

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Solution

The fourth proportional to 1,571.24, 2,356.18 and 790.76 is: 1,185.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.24 : 2,356.18 = 790.76 : x
  2. Step 2: Convert to fraction form
    1,571.24/2,356.18 = 790.76/x
  3. Step 3: Cross multiply
    1,571.24x = 2,356.18 × 790.76
  4. Step 4: Simplify right side
    1,571.24x = 1,863,159.14
  5. Step 5: Solve for x
    x = 1,863,159.14/1,571.24
  6. Step 6: Final answer
    x = 1,185.79

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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.