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Finding the Third Proportional to 4,284 and 4,621.50

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Solution

The third proportional to 4,284 and 4,621.50 is: 4,985.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,284 : 4,621.50 = 4,621.50 : x
  2. Step 2: Convert to fraction form
    4,284/4,621.50 = 4,621.50/x
  3. Step 3: Cross multiply
    4,284x = 4,621.50 × 4,621.50
  4. Step 4: Simplify right side
    4,284x = 21,358,262.25
  5. Step 5: Solve for x
    x = 21,358,262.25/4,284
  6. Step 6: Final answer
    x = 4,985.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.