Home / 1,457.23-2,185.44-753.79

Finding the Fourth Proportional to 1,457.23, 2,185.44 and 753.79

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Solution

The fourth proportional to 1,457.23, 2,185.44 and 753.79 is: 1,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.23 : 2,185.44 = 753.79 : x
  2. Step 2: Convert to fraction form
    1,457.23/2,185.44 = 753.79/x
  3. Step 3: Cross multiply
    1,457.23x = 2,185.44 × 753.79
  4. Step 4: Simplify right side
    1,457.23x = 1,647,362.82
  5. Step 5: Solve for x
    x = 1,647,362.82/1,457.23
  6. Step 6: Final answer
    x = 1,130.48

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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.