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Finding the Fourth Proportional to 3,384.95, 4,671.21 and 2,058.39

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Solution

The fourth proportional to 3,384.95, 4,671.21 and 2,058.39 is: 2,840.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.95 : 4,671.21 = 2,058.39 : x
  2. Step 2: Convert to fraction form
    3,384.95/4,671.21 = 2,058.39/x
  3. Step 3: Cross multiply
    3,384.95x = 4,671.21 × 2,058.39
  4. Step 4: Simplify right side
    3,384.95x = 9,615,171.95
  5. Step 5: Solve for x
    x = 9,615,171.95/3,384.95
  6. Step 6: Final answer
    x = 2,840.57

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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.