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Finding the Fourth Proportional to 3,808.95, 5,259.08 and 2,970.59

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Solution

The fourth proportional to 3,808.95, 5,259.08 and 2,970.59 is: 4,101.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.95 : 5,259.08 = 2,970.59 : x
  2. Step 2: Convert to fraction form
    3,808.95/5,259.08 = 2,970.59/x
  3. Step 3: Cross multiply
    3,808.95x = 5,259.08 × 2,970.59
  4. Step 4: Simplify right side
    3,808.95x = 15,622,555.60
  5. Step 5: Solve for x
    x = 15,622,555.60/3,808.95
  6. Step 6: Final answer
    x = 4,101.54

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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.