Home / 3,212.23-4,432.95-1,886.89

Finding the Fourth Proportional to 3,212.23, 4,432.95 and 1,886.89

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Solution

The fourth proportional to 3,212.23, 4,432.95 and 1,886.89 is: 2,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.23 : 4,432.95 = 1,886.89 : x
  2. Step 2: Convert to fraction form
    3,212.23/4,432.95 = 1,886.89/x
  3. Step 3: Cross multiply
    3,212.23x = 4,432.95 × 1,886.89
  4. Step 4: Simplify right side
    3,212.23x = 8,364,489.03
  5. Step 5: Solve for x
    x = 8,364,489.03/3,212.23
  6. Step 6: Final answer
    x = 2,603.95

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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.