Home / 1,507.18-2,261.07-891.33

Finding the Fourth Proportional to 1,507.18, 2,261.07 and 891.33

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Solution

The fourth proportional to 1,507.18, 2,261.07 and 891.33 is: 1,337.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507.18 : 2,261.07 = 891.33 : x
  2. Step 2: Convert to fraction form
    1,507.18/2,261.07 = 891.33/x
  3. Step 3: Cross multiply
    1,507.18x = 2,261.07 × 891.33
  4. Step 4: Simplify right side
    1,507.18x = 2,015,359.52
  5. Step 5: Solve for x
    x = 2,015,359.52/1,507.18
  6. Step 6: Final answer
    x = 1,337.17

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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.