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Finding the Fourth Proportional to 3,483.93, 4,808.13 and 1,912.35

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Solution

The fourth proportional to 3,483.93, 4,808.13 and 1,912.35 is: 2,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,483.93 : 4,808.13 = 1,912.35 : x
  2. Step 2: Convert to fraction form
    3,483.93/4,808.13 = 1,912.35/x
  3. Step 3: Cross multiply
    3,483.93x = 4,808.13 × 1,912.35
  4. Step 4: Simplify right side
    3,483.93x = 9,194,827.41
  5. Step 5: Solve for x
    x = 9,194,827.41/3,483.93
  6. Step 6: Final answer
    x = 2,639.21

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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.