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Finding the Fourth Proportional to 4,784.70, 6,602.16 and 2,688.42

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Solution

The fourth proportional to 4,784.70, 6,602.16 and 2,688.42 is: 3,709.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784.70 : 6,602.16 = 2,688.42 : x
  2. Step 2: Convert to fraction form
    4,784.70/6,602.16 = 2,688.42/x
  3. Step 3: Cross multiply
    4,784.70x = 6,602.16 × 2,688.42
  4. Step 4: Simplify right side
    4,784.70x = 17,749,378.99
  5. Step 5: Solve for x
    x = 17,749,378.99/4,784.70
  6. Step 6: Final answer
    x = 3,709.61

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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.