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Finding the Fourth Proportional to 7,344.80, 11,017.28 and 1,798.16

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Solution

The fourth proportional to 7,344.80, 11,017.28 and 1,798.16 is: 2,697.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.80 : 11,017.28 = 1,798.16 : x
  2. Step 2: Convert to fraction form
    7,344.80/11,017.28 = 1,798.16/x
  3. Step 3: Cross multiply
    7,344.80x = 11,017.28 × 1,798.16
  4. Step 4: Simplify right side
    7,344.80x = 19,810,832.20
  5. Step 5: Solve for x
    x = 19,810,832.20/7,344.80
  6. Step 6: Final answer
    x = 2,697.26

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Double scale
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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.