Home / 6,485.49-9,729.14-2,101.53

Finding the Fourth Proportional to 6,485.49, 9,729.14 and 2,101.53

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Solution

The fourth proportional to 6,485.49, 9,729.14 and 2,101.53 is: 3,152.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.49 : 9,729.14 = 2,101.53 : x
  2. Step 2: Convert to fraction form
    6,485.49/9,729.14 = 2,101.53/x
  3. Step 3: Cross multiply
    6,485.49x = 9,729.14 × 2,101.53
  4. Step 4: Simplify right side
    6,485.49x = 20,446,069.08
  5. Step 5: Solve for x
    x = 20,446,069.08/6,485.49
  6. Step 6: Final answer
    x = 3,152.59

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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.