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Finding the Fourth Proportional to 3,484.96, 4,809.54 and 1,913.34

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Solution

The fourth proportional to 3,484.96, 4,809.54 and 1,913.34 is: 2,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.96 : 4,809.54 = 1,913.34 : x
  2. Step 2: Convert to fraction form
    3,484.96/4,809.54 = 1,913.34/x
  3. Step 3: Cross multiply
    3,484.96x = 4,809.54 × 1,913.34
  4. Step 4: Simplify right side
    3,484.96x = 9,202,285.26
  5. Step 5: Solve for x
    x = 9,202,285.26/3,484.96
  6. Step 6: Final answer
    x = 2,640.57

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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.