Home / 3,644.92-5,030.36-2,153.32

Finding the Fourth Proportional to 3,644.92, 5,030.36 and 2,153.32

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Solution

The fourth proportional to 3,644.92, 5,030.36 and 2,153.32 is: 2,971.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.92 : 5,030.36 = 2,153.32 : x
  2. Step 2: Convert to fraction form
    3,644.92/5,030.36 = 2,153.32/x
  3. Step 3: Cross multiply
    3,644.92x = 5,030.36 × 2,153.32
  4. Step 4: Simplify right side
    3,644.92x = 10,831,974.80
  5. Step 5: Solve for x
    x = 10,831,974.80/3,644.92
  6. Step 6: Final answer
    x = 2,971.80

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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.