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Finding the Fourth Proportional to 3,420.62, 4,720.44 and 1,848.71

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Solution

The fourth proportional to 3,420.62, 4,720.44 and 1,848.71 is: 2,551.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.62 : 4,720.44 = 1,848.71 : x
  2. Step 2: Convert to fraction form
    3,420.62/4,720.44 = 1,848.71/x
  3. Step 3: Cross multiply
    3,420.62x = 4,720.44 × 1,848.71
  4. Step 4: Simplify right side
    3,420.62x = 8,726,701.03
  5. Step 5: Solve for x
    x = 8,726,701.03/3,420.62
  6. Step 6: Final answer
    x = 2,551.21

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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.