Home / 1,457.72-2,175.56-1,358.96

Finding the Fourth Proportional to 1,457.72, 2,175.56 and 1,358.96

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Solution

The fourth proportional to 1,457.72, 2,175.56 and 1,358.96 is: 2,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.72 : 2,175.56 = 1,358.96 : x
  2. Step 2: Convert to fraction form
    1,457.72/2,175.56 = 1,358.96/x
  3. Step 3: Cross multiply
    1,457.72x = 2,175.56 × 1,358.96
  4. Step 4: Simplify right side
    1,457.72x = 2,956,481.35
  5. Step 5: Solve for x
    x = 2,956,481.35/1,457.72
  6. Step 6: Final answer
    x = 2,028.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.