Home / 3,219.47-4,442.66-1,783.74

Finding the Fourth Proportional to 3,219.47, 4,442.66 and 1,783.74

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Solution

The fourth proportional to 3,219.47, 4,442.66 and 1,783.74 is: 2,461.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.47 : 4,442.66 = 1,783.74 : x
  2. Step 2: Convert to fraction form
    3,219.47/4,442.66 = 1,783.74/x
  3. Step 3: Cross multiply
    3,219.47x = 4,442.66 × 1,783.74
  4. Step 4: Simplify right side
    3,219.47x = 7,924,546.02
  5. Step 5: Solve for x
    x = 7,924,546.02/3,219.47
  6. Step 6: Final answer
    x = 2,461.44

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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.