Home / 4,612.50-6,914.61-1,690.20

Finding the Fourth Proportional to 4,612.50, 6,914.61 and 1,690.20

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Solution

The fourth proportional to 4,612.50, 6,914.61 and 1,690.20 is: 2,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,612.50 : 6,914.61 = 1,690.20 : x
  2. Step 2: Convert to fraction form
    4,612.50/6,914.61 = 1,690.20/x
  3. Step 3: Cross multiply
    4,612.50x = 6,914.61 × 1,690.20
  4. Step 4: Simplify right side
    4,612.50x = 11,687,073.82
  5. Step 5: Solve for x
    x = 11,687,073.82/4,612.50
  6. Step 6: Final answer
    x = 2,533.78

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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.