Home / 1,647.56-2,273.88-948.80

Finding the Fourth Proportional to 1,647.56, 2,273.88 and 948.80

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Solution

The fourth proportional to 1,647.56, 2,273.88 and 948.80 is: 1,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.56 : 2,273.88 = 948.80 : x
  2. Step 2: Convert to fraction form
    1,647.56/2,273.88 = 948.80/x
  3. Step 3: Cross multiply
    1,647.56x = 2,273.88 × 948.80
  4. Step 4: Simplify right side
    1,647.56x = 2,157,457.34
  5. Step 5: Solve for x
    x = 2,157,457.34/1,647.56
  6. Step 6: Final answer
    x = 1,309.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.