Home / 2,606.19-3,904.21-1,985.32

Finding the Fourth Proportional to 2,606.19, 3,904.21 and 1,985.32

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Solution

The fourth proportional to 2,606.19, 3,904.21 and 1,985.32 is: 2,974.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,606.19 : 3,904.21 = 1,985.32 : x
  2. Step 2: Convert to fraction form
    2,606.19/3,904.21 = 1,985.32/x
  3. Step 3: Cross multiply
    2,606.19x = 3,904.21 × 1,985.32
  4. Step 4: Simplify right side
    2,606.19x = 7,751,106.20
  5. Step 5: Solve for x
    x = 7,751,106.20/2,606.19
  6. Step 6: Final answer
    x = 2,974.11

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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.