Home / 4,752.84-7,128.09-2,155.26

Finding the Fourth Proportional to 4,752.84, 7,128.09 and 2,155.26

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Solution

The fourth proportional to 4,752.84, 7,128.09 and 2,155.26 is: 3,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.84 : 7,128.09 = 2,155.26 : x
  2. Step 2: Convert to fraction form
    4,752.84/7,128.09 = 2,155.26/x
  3. Step 3: Cross multiply
    4,752.84x = 7,128.09 × 2,155.26
  4. Step 4: Simplify right side
    4,752.84x = 15,362,887.25
  5. Step 5: Solve for x
    x = 15,362,887.25/4,752.84
  6. Step 6: Final answer
    x = 3,232.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.