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Finding the Fourth Proportional to 3,360.99, 4,638.06 and 1,868.88

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Solution

The fourth proportional to 3,360.99, 4,638.06 and 1,868.88 is: 2,579.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.99 : 4,638.06 = 1,868.88 : x
  2. Step 2: Convert to fraction form
    3,360.99/4,638.06 = 1,868.88/x
  3. Step 3: Cross multiply
    3,360.99x = 4,638.06 × 1,868.88
  4. Step 4: Simplify right side
    3,360.99x = 8,667,977.57
  5. Step 5: Solve for x
    x = 8,667,977.57/3,360.99
  6. Step 6: Final answer
    x = 2,579.00

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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.