Home / 3,868.08-5,802.48-1,271.28

Finding the Fourth Proportional to 3,868.08, 5,802.48 and 1,271.28

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Solution

The fourth proportional to 3,868.08, 5,802.48 and 1,271.28 is: 1,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.08 : 5,802.48 = 1,271.28 : x
  2. Step 2: Convert to fraction form
    3,868.08/5,802.48 = 1,271.28/x
  3. Step 3: Cross multiply
    3,868.08x = 5,802.48 × 1,271.28
  4. Step 4: Simplify right side
    3,868.08x = 7,376,576.77
  5. Step 5: Solve for x
    x = 7,376,576.77/3,868.08
  6. Step 6: Final answer
    x = 1,907.04

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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.