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Finding the Fourth Proportional to 7,695.64, 10,619.34 and 4,551.28

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Solution

The fourth proportional to 7,695.64, 10,619.34 and 4,551.28 is: 6,280.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,695.64 : 10,619.34 = 4,551.28 : x
  2. Step 2: Convert to fraction form
    7,695.64/10,619.34 = 4,551.28/x
  3. Step 3: Cross multiply
    7,695.64x = 10,619.34 × 4,551.28
  4. Step 4: Simplify right side
    7,695.64x = 48,331,589.76
  5. Step 5: Solve for x
    x = 48,331,589.76/7,695.64
  6. Step 6: Final answer
    x = 6,280.39

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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.