Home / 1,905.48-2,629.41-1,066.21

Finding the Fourth Proportional to 1,905.48, 2,629.41 and 1,066.21

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Solution

The fourth proportional to 1,905.48, 2,629.41 and 1,066.21 is: 1,471.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.48 : 2,629.41 = 1,066.21 : x
  2. Step 2: Convert to fraction form
    1,905.48/2,629.41 = 1,066.21/x
  3. Step 3: Cross multiply
    1,905.48x = 2,629.41 × 1,066.21
  4. Step 4: Simplify right side
    1,905.48x = 2,803,492.66
  5. Step 5: Solve for x
    x = 2,803,492.66/1,905.48
  6. Step 6: Final answer
    x = 1,471.28

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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.