Home / 1,926.39-2,655.59-1,365.12

Finding the Fourth Proportional to 1,926.39, 2,655.59 and 1,365.12

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Solution

The fourth proportional to 1,926.39, 2,655.59 and 1,365.12 is: 1,881.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.39 : 2,655.59 = 1,365.12 : x
  2. Step 2: Convert to fraction form
    1,926.39/2,655.59 = 1,365.12/x
  3. Step 3: Cross multiply
    1,926.39x = 2,655.59 × 1,365.12
  4. Step 4: Simplify right side
    1,926.39x = 3,625,199.02
  5. Step 5: Solve for x
    x = 3,625,199.02/1,926.39
  6. Step 6: Final answer
    x = 1,881.86

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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.