Home / 7,886.21-11,828.85-2,955.44

Finding the Fourth Proportional to 7,886.21, 11,828.85 and 2,955.44

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Solution

The fourth proportional to 7,886.21, 11,828.85 and 2,955.44 is: 4,432.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.21 : 11,828.85 = 2,955.44 : x
  2. Step 2: Convert to fraction form
    7,886.21/11,828.85 = 2,955.44/x
  3. Step 3: Cross multiply
    7,886.21x = 11,828.85 × 2,955.44
  4. Step 4: Simplify right side
    7,886.21x = 34,959,425.02
  5. Step 5: Solve for x
    x = 34,959,425.02/7,886.21
  6. Step 6: Final answer
    x = 4,432.98

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1.5x scale

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.