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Finding the Fourth Proportional to 2,885.96, 3,980.61 and 1,751.63

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Solution

The fourth proportional to 2,885.96, 3,980.61 and 1,751.63 is: 2,416.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.96 : 3,980.61 = 1,751.63 : x
  2. Step 2: Convert to fraction form
    2,885.96/3,980.61 = 1,751.63/x
  3. Step 3: Cross multiply
    2,885.96x = 3,980.61 × 1,751.63
  4. Step 4: Simplify right side
    2,885.96x = 6,972,535.99
  5. Step 5: Solve for x
    x = 6,972,535.99/2,885.96
  6. Step 6: Final answer
    x = 2,416.02

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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.