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Finding the Fourth Proportional to 4,784.64, 6,602.24 and 2,688.64

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Solution

The fourth proportional to 4,784.64, 6,602.24 and 2,688.64 is: 3,710.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784.64 : 6,602.24 = 2,688.64 : x
  2. Step 2: Convert to fraction form
    4,784.64/6,602.24 = 2,688.64/x
  3. Step 3: Cross multiply
    4,784.64x = 6,602.24 × 2,688.64
  4. Step 4: Simplify right side
    4,784.64x = 17,751,046.55
  5. Step 5: Solve for x
    x = 17,751,046.55/4,784.64
  6. Step 6: Final answer
    x = 3,710.01

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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.