Home / 4,739.36-7,109.28-1,276.64

Finding the Fourth Proportional to 4,739.36, 7,109.28 and 1,276.64

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Solution

The fourth proportional to 4,739.36, 7,109.28 and 1,276.64 is: 1,915.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.36 : 7,109.28 = 1,276.64 : x
  2. Step 2: Convert to fraction form
    4,739.36/7,109.28 = 1,276.64/x
  3. Step 3: Cross multiply
    4,739.36x = 7,109.28 × 1,276.64
  4. Step 4: Simplify right side
    4,739.36x = 9,075,991.22
  5. Step 5: Solve for x
    x = 9,075,991.22/4,739.36
  6. Step 6: Final answer
    x = 1,915.02

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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.