Home / 4,611.25-6,912.76-1,688.87

Finding the Fourth Proportional to 4,611.25, 6,912.76 and 1,688.87

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Solution

The fourth proportional to 4,611.25, 6,912.76 and 1,688.87 is: 2,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,611.25 : 6,912.76 = 1,688.87 : x
  2. Step 2: Convert to fraction form
    4,611.25/6,912.76 = 1,688.87/x
  3. Step 3: Cross multiply
    4,611.25x = 6,912.76 × 1,688.87
  4. Step 4: Simplify right side
    4,611.25x = 11,674,730.32
  5. Step 5: Solve for x
    x = 11,674,730.32/4,611.25
  6. Step 6: Final answer
    x = 2,531.80

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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.