Home / 7,913.66-10,921.92-4,557.02

Finding the Fourth Proportional to 7,913.66, 10,921.92 and 4,557.02

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Solution

The fourth proportional to 7,913.66, 10,921.92 and 4,557.02 is: 6,289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.66 : 10,921.92 = 4,557.02 : x
  2. Step 2: Convert to fraction form
    7,913.66/10,921.92 = 4,557.02/x
  3. Step 3: Cross multiply
    7,913.66x = 10,921.92 × 4,557.02
  4. Step 4: Simplify right side
    7,913.66x = 49,771,407.88
  5. Step 5: Solve for x
    x = 49,771,407.88/7,913.66
  6. Step 6: Final answer
    x = 6,289.30

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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.