Home / 1,145.33-1,714.44-1,127.51

Finding the Fourth Proportional to 1,145.33, 1,714.44 and 1,127.51

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Solution

The fourth proportional to 1,145.33, 1,714.44 and 1,127.51 is: 1,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145.33 : 1,714.44 = 1,127.51 : x
  2. Step 2: Convert to fraction form
    1,145.33/1,714.44 = 1,127.51/x
  3. Step 3: Cross multiply
    1,145.33x = 1,714.44 × 1,127.51
  4. Step 4: Simplify right side
    1,145.33x = 1,933,048.24
  5. Step 5: Solve for x
    x = 1,933,048.24/1,145.33
  6. Step 6: Final answer
    x = 1,687.77

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1.5x scale

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.