Home / 4,722.38-7,071.21-3,980.01

Finding the Fourth Proportional to 4,722.38, 7,071.21 and 3,980.01

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Solution

The fourth proportional to 4,722.38, 7,071.21 and 3,980.01 is: 5,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.38 : 7,071.21 = 3,980.01 : x
  2. Step 2: Convert to fraction form
    4,722.38/7,071.21 = 3,980.01/x
  3. Step 3: Cross multiply
    4,722.38x = 7,071.21 × 3,980.01
  4. Step 4: Simplify right side
    4,722.38x = 28,143,486.51
  5. Step 5: Solve for x
    x = 28,143,486.51/4,722.38
  6. Step 6: Final answer
    x = 5,959.60

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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.