Home / 1,905.62-2,629.62-1,066.28

Finding the Fourth Proportional to 1,905.62, 2,629.62 and 1,066.28

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Solution

The fourth proportional to 1,905.62, 2,629.62 and 1,066.28 is: 1,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.62 : 2,629.62 = 1,066.28 : x
  2. Step 2: Convert to fraction form
    1,905.62/2,629.62 = 1,066.28/x
  3. Step 3: Cross multiply
    1,905.62x = 2,629.62 × 1,066.28
  4. Step 4: Simplify right side
    1,905.62x = 2,803,911.21
  5. Step 5: Solve for x
    x = 2,803,911.21/1,905.62
  6. Step 6: Final answer
    x = 1,471.39

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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.