Home / 4,720.40-7,079.67-4,486.25

Finding the Fourth Proportional to 4,720.40, 7,079.67 and 4,486.25

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Solution

The fourth proportional to 4,720.40, 7,079.67 and 4,486.25 is: 6,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.40 : 7,079.67 = 4,486.25 : x
  2. Step 2: Convert to fraction form
    4,720.40/7,079.67 = 4,486.25/x
  3. Step 3: Cross multiply
    4,720.40x = 7,079.67 × 4,486.25
  4. Step 4: Simplify right side
    4,720.40x = 31,761,134.14
  5. Step 5: Solve for x
    x = 31,761,134.14/4,720.40
  6. Step 6: Final answer
    x = 6,728.49

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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.