Home / 4,716.72-7,075.40-1,638.32

Finding the Fourth Proportional to 4,716.72, 7,075.40 and 1,638.32

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Solution

The fourth proportional to 4,716.72, 7,075.40 and 1,638.32 is: 2,457.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,716.72 : 7,075.40 = 1,638.32 : x
  2. Step 2: Convert to fraction form
    4,716.72/7,075.40 = 1,638.32/x
  3. Step 3: Cross multiply
    4,716.72x = 7,075.40 × 1,638.32
  4. Step 4: Simplify right side
    4,716.72x = 11,591,769.33
  5. Step 5: Solve for x
    x = 11,591,769.33/4,716.72
  6. Step 6: Final answer
    x = 2,457.59

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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.