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Finding the Fourth Proportional to 3,622.79, 4,999.61 and 2,835.47

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Solution

The fourth proportional to 3,622.79, 4,999.61 and 2,835.47 is: 3,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.79 : 4,999.61 = 2,835.47 : x
  2. Step 2: Convert to fraction form
    3,622.79/4,999.61 = 2,835.47/x
  3. Step 3: Cross multiply
    3,622.79x = 4,999.61 × 2,835.47
  4. Step 4: Simplify right side
    3,622.79x = 14,176,244.17
  5. Step 5: Solve for x
    x = 14,176,244.17/3,622.79
  6. Step 6: Final answer
    x = 3,913.07

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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.