Home / 2,486.52-3,432.06-1,438.74

Finding the Fourth Proportional to 2,486.52, 3,432.06 and 1,438.74

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Solution

The fourth proportional to 2,486.52, 3,432.06 and 1,438.74 is: 1,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.52 : 3,432.06 = 1,438.74 : x
  2. Step 2: Convert to fraction form
    2,486.52/3,432.06 = 1,438.74/x
  3. Step 3: Cross multiply
    2,486.52x = 3,432.06 × 1,438.74
  4. Step 4: Simplify right side
    2,486.52x = 4,937,842.00
  5. Step 5: Solve for x
    x = 4,937,842.00/2,486.52
  6. Step 6: Final answer
    x = 1,985.84

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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.