Home / 1,925.78-2,888.40-1,101.38

Finding the Fourth Proportional to 1,925.78, 2,888.40 and 1,101.38

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Solution

The fourth proportional to 1,925.78, 2,888.40 and 1,101.38 is: 1,651.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.78 : 2,888.40 = 1,101.38 : x
  2. Step 2: Convert to fraction form
    1,925.78/2,888.40 = 1,101.38/x
  3. Step 3: Cross multiply
    1,925.78x = 2,888.40 × 1,101.38
  4. Step 4: Simplify right side
    1,925.78x = 3,181,225.99
  5. Step 5: Solve for x
    x = 3,181,225.99/1,925.78
  6. Step 6: Final answer
    x = 1,651.92

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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.