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Finding the Fourth Proportional to 3,393.90, 4,684.47 and 2,068.50

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Solution

The fourth proportional to 3,393.90, 4,684.47 and 2,068.50 is: 2,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.90 : 4,684.47 = 2,068.50 : x
  2. Step 2: Convert to fraction form
    3,393.90/4,684.47 = 2,068.50/x
  3. Step 3: Cross multiply
    3,393.90x = 4,684.47 × 2,068.50
  4. Step 4: Simplify right side
    3,393.90x = 9,689,826.20
  5. Step 5: Solve for x
    x = 9,689,826.20/3,393.90
  6. Step 6: Final answer
    x = 2,855.07

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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.