Home / 1,054.16-1,581.12-404.96

Finding the Fourth Proportional to 1,054.16, 1,581.12 and 404.96

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Solution

The fourth proportional to 1,054.16, 1,581.12 and 404.96 is: 607.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.16 : 1,581.12 = 404.96 : x
  2. Step 2: Convert to fraction form
    1,054.16/1,581.12 = 404.96/x
  3. Step 3: Cross multiply
    1,054.16x = 1,581.12 × 404.96
  4. Step 4: Simplify right side
    1,054.16x = 640,290.36
  5. Step 5: Solve for x
    x = 640,290.36/1,054.16
  6. Step 6: Final answer
    x = 607.39

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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.