Home / 2,983.36-4,118.93-1,921.53

Finding the Fourth Proportional to 2,983.36, 4,118.93 and 1,921.53

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Solution

The fourth proportional to 2,983.36, 4,118.93 and 1,921.53 is: 2,652.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.36 : 4,118.93 = 1,921.53 : x
  2. Step 2: Convert to fraction form
    2,983.36/4,118.93 = 1,921.53/x
  3. Step 3: Cross multiply
    2,983.36x = 4,118.93 × 1,921.53
  4. Step 4: Simplify right side
    2,983.36x = 7,914,637.96
  5. Step 5: Solve for x
    x = 7,914,637.96/2,983.36
  6. Step 6: Final answer
    x = 2,652.93

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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.