Home / 1,476.18-2,215.86-745.56

Finding the Fourth Proportional to 1,476.18, 2,215.86 and 745.56

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Solution

The fourth proportional to 1,476.18, 2,215.86 and 745.56 is: 1,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.18 : 2,215.86 = 745.56 : x
  2. Step 2: Convert to fraction form
    1,476.18/2,215.86 = 745.56/x
  3. Step 3: Cross multiply
    1,476.18x = 2,215.86 × 745.56
  4. Step 4: Simplify right side
    1,476.18x = 1,652,056.58
  5. Step 5: Solve for x
    x = 1,652,056.58/1,476.18
  6. Step 6: Final answer
    x = 1,119.14

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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.