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Finding the Fourth Proportional to 6,802.72, 9,385.04 and 4,145.52

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Solution

The fourth proportional to 6,802.72, 9,385.04 and 4,145.52 is: 5,719.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,802.72 : 9,385.04 = 4,145.52 : x
  2. Step 2: Convert to fraction form
    6,802.72/9,385.04 = 4,145.52/x
  3. Step 3: Cross multiply
    6,802.72x = 9,385.04 × 4,145.52
  4. Step 4: Simplify right side
    6,802.72x = 38,905,871.02
  5. Step 5: Solve for x
    x = 38,905,871.02/6,802.72
  6. Step 6: Final answer
    x = 5,719.16

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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.