Home / 4,987.36-7,485.09-4,790.53

Finding the Fourth Proportional to 4,987.36, 7,485.09 and 4,790.53

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Solution

The fourth proportional to 4,987.36, 7,485.09 and 4,790.53 is: 7,189.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.36 : 7,485.09 = 4,790.53 : x
  2. Step 2: Convert to fraction form
    4,987.36/7,485.09 = 4,790.53/x
  3. Step 3: Cross multiply
    4,987.36x = 7,485.09 × 4,790.53
  4. Step 4: Simplify right side
    4,987.36x = 35,857,548.20
  5. Step 5: Solve for x
    x = 35,857,548.20/4,987.36
  6. Step 6: Final answer
    x = 7,189.69

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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.