Home / 3,119.06-4,674-2,130.68

Finding the Fourth Proportional to 3,119.06, 4,674 and 2,130.68

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Solution

The fourth proportional to 3,119.06, 4,674 and 2,130.68 is: 3,192.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.06 : 4,674 = 2,130.68 : x
  2. Step 2: Convert to fraction form
    3,119.06/4,674 = 2,130.68/x
  3. Step 3: Cross multiply
    3,119.06x = 4,674 × 2,130.68
  4. Step 4: Simplify right side
    3,119.06x = 9,958,798.32
  5. Step 5: Solve for x
    x = 9,958,798.32/3,119.06
  6. Step 6: Final answer
    x = 3,192.88

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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.