Home / 2,474.85-3,415.29-1,355.79

Finding the Fourth Proportional to 2,474.85, 3,415.29 and 1,355.79

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Solution

The fourth proportional to 2,474.85, 3,415.29 and 1,355.79 is: 1,870.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,474.85 : 3,415.29 = 1,355.79 : x
  2. Step 2: Convert to fraction form
    2,474.85/3,415.29 = 1,355.79/x
  3. Step 3: Cross multiply
    2,474.85x = 3,415.29 × 1,355.79
  4. Step 4: Simplify right side
    2,474.85x = 4,630,398.95
  5. Step 5: Solve for x
    x = 4,630,398.95/2,474.85
  6. Step 6: Final answer
    x = 1,870.99

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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.