Home / 1,271.04-1,905.32-655.44

Finding the Fourth Proportional to 1,271.04, 1,905.32 and 655.44

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Solution

The fourth proportional to 1,271.04, 1,905.32 and 655.44 is: 982.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271.04 : 1,905.32 = 655.44 : x
  2. Step 2: Convert to fraction form
    1,271.04/1,905.32 = 655.44/x
  3. Step 3: Cross multiply
    1,271.04x = 1,905.32 × 655.44
  4. Step 4: Simplify right side
    1,271.04x = 1,248,822.94
  5. Step 5: Solve for x
    x = 1,248,822.94/1,271.04
  6. Step 6: Final answer
    x = 982.52

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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.