Home / 1,507.14-2,261.21-777.24

Finding the Fourth Proportional to 1,507.14, 2,261.21 and 777.24

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Solution

The fourth proportional to 1,507.14, 2,261.21 and 777.24 is: 1,166.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507.14 : 2,261.21 = 777.24 : x
  2. Step 2: Convert to fraction form
    1,507.14/2,261.21 = 777.24/x
  3. Step 3: Cross multiply
    1,507.14x = 2,261.21 × 777.24
  4. Step 4: Simplify right side
    1,507.14x = 1,757,498.97
  5. Step 5: Solve for x
    x = 1,757,498.97/1,507.14
  6. Step 6: Final answer
    x = 1,166.12

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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.