Home / 5,155.40-7,732.67-1,457.54

Finding the Fourth Proportional to 5,155.40, 7,732.67 and 1,457.54

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Solution

The fourth proportional to 5,155.40, 7,732.67 and 1,457.54 is: 2,186.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.40 : 7,732.67 = 1,457.54 : x
  2. Step 2: Convert to fraction form
    5,155.40/7,732.67 = 1,457.54/x
  3. Step 3: Cross multiply
    5,155.40x = 7,732.67 × 1,457.54
  4. Step 4: Simplify right side
    5,155.40x = 11,270,640.81
  5. Step 5: Solve for x
    x = 11,270,640.81/5,155.40
  6. Step 6: Final answer
    x = 2,186.18

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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.