Home / 5,210.88-7,812.48-2,611.84

Finding the Fourth Proportional to 5,210.88, 7,812.48 and 2,611.84

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Solution

The fourth proportional to 5,210.88, 7,812.48 and 2,611.84 is: 3,915.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.88 : 7,812.48 = 2,611.84 : x
  2. Step 2: Convert to fraction form
    5,210.88/7,812.48 = 2,611.84/x
  3. Step 3: Cross multiply
    5,210.88x = 7,812.48 × 2,611.84
  4. Step 4: Simplify right side
    5,210.88x = 20,404,947.76
  5. Step 5: Solve for x
    x = 20,404,947.76/5,210.88
  6. Step 6: Final answer
    x = 3,915.84

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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.