Home / 6,721.52-9,276.48-4,068.90

Finding the Fourth Proportional to 6,721.52, 9,276.48 and 4,068.90

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Solution

The fourth proportional to 6,721.52, 9,276.48 and 4,068.90 is: 5,615.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.52 : 9,276.48 = 4,068.90 : x
  2. Step 2: Convert to fraction form
    6,721.52/9,276.48 = 4,068.90/x
  3. Step 3: Cross multiply
    6,721.52x = 9,276.48 × 4,068.90
  4. Step 4: Simplify right side
    6,721.52x = 37,745,069.47
  5. Step 5: Solve for x
    x = 37,745,069.47/6,721.52
  6. Step 6: Final answer
    x = 5,615.56

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1.5x scale

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.