Home / 2,460.21-3,394.93-1,397.85

Finding the Fourth Proportional to 2,460.21, 3,394.93 and 1,397.85

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Solution

The fourth proportional to 2,460.21, 3,394.93 and 1,397.85 is: 1,928.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,460.21 : 3,394.93 = 1,397.85 : x
  2. Step 2: Convert to fraction form
    2,460.21/3,394.93 = 1,397.85/x
  3. Step 3: Cross multiply
    2,460.21x = 3,394.93 × 1,397.85
  4. Step 4: Simplify right side
    2,460.21x = 4,745,602.90
  5. Step 5: Solve for x
    x = 4,745,602.90/2,460.21
  6. Step 6: Final answer
    x = 1,928.94

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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.