Home / 2,391.89-3,298.97-1,730.93

Finding the Fourth Proportional to 2,391.89, 3,298.97 and 1,730.93

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Solution

The fourth proportional to 2,391.89, 3,298.97 and 1,730.93 is: 2,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.89 : 3,298.97 = 1,730.93 : x
  2. Step 2: Convert to fraction form
    2,391.89/3,298.97 = 1,730.93/x
  3. Step 3: Cross multiply
    2,391.89x = 3,298.97 × 1,730.93
  4. Step 4: Simplify right side
    2,391.89x = 5,710,286.14
  5. Step 5: Solve for x
    x = 5,710,286.14/2,391.89
  6. Step 6: Final answer
    x = 2,387.35

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1.5x scale

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.