Home / 4,839.36-7,257.47-2,987.70

Finding the Fourth Proportional to 4,839.36, 7,257.47 and 2,987.70

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Solution

The fourth proportional to 4,839.36, 7,257.47 and 2,987.70 is: 4,480.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.36 : 7,257.47 = 2,987.70 : x
  2. Step 2: Convert to fraction form
    4,839.36/7,257.47 = 2,987.70/x
  3. Step 3: Cross multiply
    4,839.36x = 7,257.47 × 2,987.70
  4. Step 4: Simplify right side
    4,839.36x = 21,683,128.18
  5. Step 5: Solve for x
    x = 21,683,128.18/4,839.36
  6. Step 6: Final answer
    x = 4,480.58

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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.