Home / 1,605.22-2,214.36-1,015.54

Finding the Fourth Proportional to 1,605.22, 2,214.36 and 1,015.54

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Solution

The fourth proportional to 1,605.22, 2,214.36 and 1,015.54 is: 1,400.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605.22 : 2,214.36 = 1,015.54 : x
  2. Step 2: Convert to fraction form
    1,605.22/2,214.36 = 1,015.54/x
  3. Step 3: Cross multiply
    1,605.22x = 2,214.36 × 1,015.54
  4. Step 4: Simplify right side
    1,605.22x = 2,248,771.15
  5. Step 5: Solve for x
    x = 2,248,771.15/1,605.22
  6. Step 6: Final answer
    x = 1,400.91

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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.