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Finding the Fourth Proportional to 4,999.77, 6,900.53 and 2,905.11

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Solution

The fourth proportional to 4,999.77, 6,900.53 and 2,905.11 is: 4,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,999.77 : 6,900.53 = 2,905.11 : x
  2. Step 2: Convert to fraction form
    4,999.77/6,900.53 = 2,905.11/x
  3. Step 3: Cross multiply
    4,999.77x = 6,900.53 × 2,905.11
  4. Step 4: Simplify right side
    4,999.77x = 20,046,784.18
  5. Step 5: Solve for x
    x = 20,046,784.18/4,999.77
  6. Step 6: Final answer
    x = 4,009.54

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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.