Home / 2,101.51-2,899.73-1,356.46

Finding the Fourth Proportional to 2,101.51, 2,899.73 and 1,356.46

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Solution

The fourth proportional to 2,101.51, 2,899.73 and 1,356.46 is: 1,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.51 : 2,899.73 = 1,356.46 : x
  2. Step 2: Convert to fraction form
    2,101.51/2,899.73 = 1,356.46/x
  3. Step 3: Cross multiply
    2,101.51x = 2,899.73 × 1,356.46
  4. Step 4: Simplify right side
    2,101.51x = 3,933,363.90
  5. Step 5: Solve for x
    x = 3,933,363.90/2,101.51
  6. Step 6: Final answer
    x = 1,871.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.