Home / 1,763.96-2,646.80-1,247.28

Finding the Fourth Proportional to 1,763.96, 2,646.80 and 1,247.28

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Solution

The fourth proportional to 1,763.96, 2,646.80 and 1,247.28 is: 1,871.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763.96 : 2,646.80 = 1,247.28 : x
  2. Step 2: Convert to fraction form
    1,763.96/2,646.80 = 1,247.28/x
  3. Step 3: Cross multiply
    1,763.96x = 2,646.80 × 1,247.28
  4. Step 4: Simplify right side
    1,763.96x = 3,301,289.22
  5. Step 5: Solve for x
    x = 3,301,289.22/1,763.96
  6. Step 6: Final answer
    x = 1,871.53

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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.