Home / 4,707.90-7,063.00-1,420.80

Finding the Fourth Proportional to 4,707.90, 7,063.00 and 1,420.80

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Solution

The fourth proportional to 4,707.90, 7,063.00 and 1,420.80 is: 2,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.90 : 7,063.00 = 1,420.80 : x
  2. Step 2: Convert to fraction form
    4,707.90/7,063.00 = 1,420.80/x
  3. Step 3: Cross multiply
    4,707.90x = 7,063.00 × 1,420.80
  4. Step 4: Simplify right side
    4,707.90x = 10,035,106.85
  5. Step 5: Solve for x
    x = 10,035,106.85/4,707.90
  6. Step 6: Final answer
    x = 2,131.54

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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.