Home / 6,921.79-10,384.04-2,539.28

Finding the Fourth Proportional to 6,921.79, 10,384.04 and 2,539.28

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Solution

The fourth proportional to 6,921.79, 10,384.04 and 2,539.28 is: 3,809.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.79 : 10,384.04 = 2,539.28 : x
  2. Step 2: Convert to fraction form
    6,921.79/10,384.04 = 2,539.28/x
  3. Step 3: Cross multiply
    6,921.79x = 10,384.04 × 2,539.28
  4. Step 4: Simplify right side
    6,921.79x = 26,368,017.40
  5. Step 5: Solve for x
    x = 26,368,017.40/6,921.79
  6. Step 6: Final answer
    x = 3,809.42

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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.