Home / 4,685.90-6,466.37-3,112.88

Finding the Fourth Proportional to 4,685.90, 6,466.37 and 3,112.88

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Solution

The fourth proportional to 4,685.90, 6,466.37 and 3,112.88 is: 4,295.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.90 : 6,466.37 = 3,112.88 : x
  2. Step 2: Convert to fraction form
    4,685.90/6,466.37 = 3,112.88/x
  3. Step 3: Cross multiply
    4,685.90x = 6,466.37 × 3,112.88
  4. Step 4: Simplify right side
    4,685.90x = 20,128,985.95
  5. Step 5: Solve for x
    x = 20,128,985.95/4,685.90
  6. Step 6: Final answer
    x = 4,295.65

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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.