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Finding the Fourth Proportional to 4,784.90, 6,606.38 and 4,279.18

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Solution

The fourth proportional to 4,784.90, 6,606.38 and 4,279.18 is: 5,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784.90 : 6,606.38 = 4,279.18 : x
  2. Step 2: Convert to fraction form
    4,784.90/6,606.38 = 4,279.18/x
  3. Step 3: Cross multiply
    4,784.90x = 6,606.38 × 4,279.18
  4. Step 4: Simplify right side
    4,784.90x = 28,269,889.17
  5. Step 5: Solve for x
    x = 28,269,889.17/4,784.90
  6. Step 6: Final answer
    x = 5,908.15

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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.