Home / 4,877.70-7,321.35-2,415.30

Finding the Fourth Proportional to 4,877.70, 7,321.35 and 2,415.30

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Solution

The fourth proportional to 4,877.70, 7,321.35 and 2,415.30 is: 3,625.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.70 : 7,321.35 = 2,415.30 : x
  2. Step 2: Convert to fraction form
    4,877.70/7,321.35 = 2,415.30/x
  3. Step 3: Cross multiply
    4,877.70x = 7,321.35 × 2,415.30
  4. Step 4: Simplify right side
    4,877.70x = 17,683,256.66
  5. Step 5: Solve for x
    x = 17,683,256.66/4,877.70
  6. Step 6: Final answer
    x = 3,625.33

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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.