Home / 3,201.90-4,802.85-2,319

Finding the Fourth Proportional to 3,201.90, 4,802.85 and 2,319

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Solution

The fourth proportional to 3,201.90, 4,802.85 and 2,319 is: 3,478.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.90 : 4,802.85 = 2,319 : x
  2. Step 2: Convert to fraction form
    3,201.90/4,802.85 = 2,319/x
  3. Step 3: Cross multiply
    3,201.90x = 4,802.85 × 2,319
  4. Step 4: Simplify right side
    3,201.90x = 11,137,809.15
  5. Step 5: Solve for x
    x = 11,137,809.15/3,201.90
  6. Step 6: Final answer
    x = 3,478.50

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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.