Home / 2,715.90-4,071.08-1,071.54

Finding the Fourth Proportional to 2,715.90, 4,071.08 and 1,071.54

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Solution

The fourth proportional to 2,715.90, 4,071.08 and 1,071.54 is: 1,606.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.90 : 4,071.08 = 1,071.54 : x
  2. Step 2: Convert to fraction form
    2,715.90/4,071.08 = 1,071.54/x
  3. Step 3: Cross multiply
    2,715.90x = 4,071.08 × 1,071.54
  4. Step 4: Simplify right side
    2,715.90x = 4,362,325.06
  5. Step 5: Solve for x
    x = 4,362,325.06/2,715.90
  6. Step 6: Final answer
    x = 1,606.22

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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.