Home / 1,925.98-2,656.68-1,421.33

Finding the Fourth Proportional to 1,925.98, 2,656.68 and 1,421.33

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Solution

The fourth proportional to 1,925.98, 2,656.68 and 1,421.33 is: 1,960.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.98 : 2,656.68 = 1,421.33 : x
  2. Step 2: Convert to fraction form
    1,925.98/2,656.68 = 1,421.33/x
  3. Step 3: Cross multiply
    1,925.98x = 2,656.68 × 1,421.33
  4. Step 4: Simplify right side
    1,925.98x = 3,775,998.59
  5. Step 5: Solve for x
    x = 3,775,998.59/1,925.98
  6. Step 6: Final answer
    x = 1,960.56

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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.