Home / 2,971.09-4,099.54-1,712.05

Finding the Fourth Proportional to 2,971.09, 4,099.54 and 1,712.05

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Solution

The fourth proportional to 2,971.09, 4,099.54 and 1,712.05 is: 2,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.09 : 4,099.54 = 1,712.05 : x
  2. Step 2: Convert to fraction form
    2,971.09/4,099.54 = 1,712.05/x
  3. Step 3: Cross multiply
    2,971.09x = 4,099.54 × 1,712.05
  4. Step 4: Simplify right side
    2,971.09x = 7,018,617.46
  5. Step 5: Solve for x
    x = 7,018,617.46/2,971.09
  6. Step 6: Final answer
    x = 2,362.30

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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.