Home / 5,275.68-7,913.46-2,157.36

Finding the Fourth Proportional to 5,275.68, 7,913.46 and 2,157.36

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Solution

The fourth proportional to 5,275.68, 7,913.46 and 2,157.36 is: 3,236.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.68 : 7,913.46 = 2,157.36 : x
  2. Step 2: Convert to fraction form
    5,275.68/7,913.46 = 2,157.36/x
  3. Step 3: Cross multiply
    5,275.68x = 7,913.46 × 2,157.36
  4. Step 4: Simplify right side
    5,275.68x = 17,072,182.07
  5. Step 5: Solve for x
    x = 17,072,182.07/5,275.68
  6. Step 6: Final answer
    x = 3,236.02

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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.