Home / 2,930.93-4,045.01-1,811.91

Finding the Fourth Proportional to 2,930.93, 4,045.01 and 1,811.91

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Solution

The fourth proportional to 2,930.93, 4,045.01 and 1,811.91 is: 2,500.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.93 : 4,045.01 = 1,811.91 : x
  2. Step 2: Convert to fraction form
    2,930.93/4,045.01 = 1,811.91/x
  3. Step 3: Cross multiply
    2,930.93x = 4,045.01 × 1,811.91
  4. Step 4: Simplify right side
    2,930.93x = 7,329,194.07
  5. Step 5: Solve for x
    x = 7,329,194.07/2,930.93
  6. Step 6: Final answer
    x = 2,500.64

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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.