Home / 2,374.95-3,561.30-1,388.05

Finding the Fourth Proportional to 2,374.95, 3,561.30 and 1,388.05

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Solution

The fourth proportional to 2,374.95, 3,561.30 and 1,388.05 is: 2,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,374.95 : 3,561.30 = 1,388.05 : x
  2. Step 2: Convert to fraction form
    2,374.95/3,561.30 = 1,388.05/x
  3. Step 3: Cross multiply
    2,374.95x = 3,561.30 × 1,388.05
  4. Step 4: Simplify right side
    2,374.95x = 4,943,244.66
  5. Step 5: Solve for x
    x = 4,943,244.66/2,374.95
  6. Step 6: Final answer
    x = 2,081.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.