Home / 1,905.49-2,629.55-1,066.20

Finding the Fourth Proportional to 1,905.49, 2,629.55 and 1,066.20

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Solution

The fourth proportional to 1,905.49, 2,629.55 and 1,066.20 is: 1,471.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.49 : 2,629.55 = 1,066.20 : x
  2. Step 2: Convert to fraction form
    1,905.49/2,629.55 = 1,066.20/x
  3. Step 3: Cross multiply
    1,905.49x = 2,629.55 × 1,066.20
  4. Step 4: Simplify right side
    1,905.49x = 2,803,619.01
  5. Step 5: Solve for x
    x = 2,803,619.01/1,905.49
  6. Step 6: Final answer
    x = 1,471.34

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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.