Home / 1,477.18-2,217.36-746.56

Finding the Fourth Proportional to 1,477.18, 2,217.36 and 746.56

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Solution

The fourth proportional to 1,477.18, 2,217.36 and 746.56 is: 1,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.18 : 2,217.36 = 746.56 : x
  2. Step 2: Convert to fraction form
    1,477.18/2,217.36 = 746.56/x
  3. Step 3: Cross multiply
    1,477.18x = 2,217.36 × 746.56
  4. Step 4: Simplify right side
    1,477.18x = 1,655,392.28
  5. Step 5: Solve for x
    x = 1,655,392.28/1,477.18
  6. Step 6: Final answer
    x = 1,120.64

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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.