Home / 6,921.04-10,385.72-2,478.36

Finding the Fourth Proportional to 6,921.04, 10,385.72 and 2,478.36

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Solution

The fourth proportional to 6,921.04, 10,385.72 and 2,478.36 is: 3,719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.04 : 10,385.72 = 2,478.36 : x
  2. Step 2: Convert to fraction form
    6,921.04/10,385.72 = 2,478.36/x
  3. Step 3: Cross multiply
    6,921.04x = 10,385.72 × 2,478.36
  4. Step 4: Simplify right side
    6,921.04x = 25,739,553.02
  5. Step 5: Solve for x
    x = 25,739,553.02/6,921.04
  6. Step 6: Final answer
    x = 3,719.03

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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.