Home / 1,686.48-2,325.06-1,127.04

Finding the Fourth Proportional to 1,686.48, 2,325.06 and 1,127.04

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Solution

The fourth proportional to 1,686.48, 2,325.06 and 1,127.04 is: 1,553.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686.48 : 2,325.06 = 1,127.04 : x
  2. Step 2: Convert to fraction form
    1,686.48/2,325.06 = 1,127.04/x
  3. Step 3: Cross multiply
    1,686.48x = 2,325.06 × 1,127.04
  4. Step 4: Simplify right side
    1,686.48x = 2,620,435.62
  5. Step 5: Solve for x
    x = 2,620,435.62/1,686.48
  6. Step 6: Final answer
    x = 1,553.79

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1.5x scale

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.