Home / 2,917.36-4,378.80-1,457.56

Finding the Fourth Proportional to 2,917.36, 4,378.80 and 1,457.56

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Solution

The fourth proportional to 2,917.36, 4,378.80 and 1,457.56 is: 2,187.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.36 : 4,378.80 = 1,457.56 : x
  2. Step 2: Convert to fraction form
    2,917.36/4,378.80 = 1,457.56/x
  3. Step 3: Cross multiply
    2,917.36x = 4,378.80 × 1,457.56
  4. Step 4: Simplify right side
    2,917.36x = 6,382,363.73
  5. Step 5: Solve for x
    x = 6,382,363.73/2,917.36
  6. Step 6: Final answer
    x = 2,187.72

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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.