Home / 2,119.61-2,925.40-1,235.24

Finding the Fourth Proportional to 2,119.61, 2,925.40 and 1,235.24

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Solution

The fourth proportional to 2,119.61, 2,925.40 and 1,235.24 is: 1,704.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.61 : 2,925.40 = 1,235.24 : x
  2. Step 2: Convert to fraction form
    2,119.61/2,925.40 = 1,235.24/x
  3. Step 3: Cross multiply
    2,119.61x = 2,925.40 × 1,235.24
  4. Step 4: Simplify right side
    2,119.61x = 3,613,559.95
  5. Step 5: Solve for x
    x = 3,613,559.95/2,119.61
  6. Step 6: Final answer
    x = 1,704.83

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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.