Home / 1,926.13-2,655.63-1,261.93

Finding the Fourth Proportional to 1,926.13, 2,655.63 and 1,261.93

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Solution

The fourth proportional to 1,926.13, 2,655.63 and 1,261.93 is: 1,739.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.13 : 2,655.63 = 1,261.93 : x
  2. Step 2: Convert to fraction form
    1,926.13/2,655.63 = 1,261.93/x
  3. Step 3: Cross multiply
    1,926.13x = 2,655.63 × 1,261.93
  4. Step 4: Simplify right side
    1,926.13x = 3,351,219.17
  5. Step 5: Solve for x
    x = 3,351,219.17/1,926.13
  6. Step 6: Final answer
    x = 1,739.87

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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.