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Finding the Fourth Proportional to 3,483.88, 4,807.75 and 1,912.01

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Solution

The fourth proportional to 3,483.88, 4,807.75 and 1,912.01 is: 2,638.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,483.88 : 4,807.75 = 1,912.01 : x
  2. Step 2: Convert to fraction form
    3,483.88/4,807.75 = 1,912.01/x
  3. Step 3: Cross multiply
    3,483.88x = 4,807.75 × 1,912.01
  4. Step 4: Simplify right side
    3,483.88x = 9,192,466.08
  5. Step 5: Solve for x
    x = 9,192,466.08/3,483.88
  6. Step 6: Final answer
    x = 2,638.57

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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.