Home / 6,485.30-9,724.68-2,972.35

Finding the Fourth Proportional to 6,485.30, 9,724.68 and 2,972.35

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Solution

The fourth proportional to 6,485.30, 9,724.68 and 2,972.35 is: 4,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.30 : 9,724.68 = 2,972.35 : x
  2. Step 2: Convert to fraction form
    6,485.30/9,724.68 = 2,972.35/x
  3. Step 3: Cross multiply
    6,485.30x = 9,724.68 × 2,972.35
  4. Step 4: Simplify right side
    6,485.30x = 28,905,101.69
  5. Step 5: Solve for x
    x = 28,905,101.69/6,485.30
  6. Step 6: Final answer
    x = 4,457.02

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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.