Home / 1,261.02-1,739.35-737.05

Finding the Fourth Proportional to 1,261.02, 1,739.35 and 737.05

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Solution

The fourth proportional to 1,261.02, 1,739.35 and 737.05 is: 1,016.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.02 : 1,739.35 = 737.05 : x
  2. Step 2: Convert to fraction form
    1,261.02/1,739.35 = 737.05/x
  3. Step 3: Cross multiply
    1,261.02x = 1,739.35 × 737.05
  4. Step 4: Simplify right side
    1,261.02x = 1,281,985.68
  5. Step 5: Solve for x
    x = 1,281,985.68/1,261.02
  6. Step 6: Final answer
    x = 1,016.63

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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.