Home / 2,660.95-3,985.46-2,071.36

Finding the Fourth Proportional to 2,660.95, 3,985.46 and 2,071.36

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Solution

The fourth proportional to 2,660.95, 3,985.46 and 2,071.36 is: 3,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.95 : 3,985.46 = 2,071.36 : x
  2. Step 2: Convert to fraction form
    2,660.95/3,985.46 = 2,071.36/x
  3. Step 3: Cross multiply
    2,660.95x = 3,985.46 × 2,071.36
  4. Step 4: Simplify right side
    2,660.95x = 8,255,322.43
  5. Step 5: Solve for x
    x = 8,255,322.43/2,660.95
  6. Step 6: Final answer
    x = 3,102.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.