Home / 2,130,213.90-3,194,336.70-931,519.20

Finding the Fourth Proportional to 2,130,213.90, 3,194,336.70 and 931,519.20

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Solution

The fourth proportional to 2,130,213.90, 3,194,336.70 and 931,519.20 is: 1,396,848.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,213.90 : 3,194,336.70 = 931,519.20 : x
  2. Step 2: Convert to fraction form
    2,130,213.90/3,194,336.70 = 931,519.20/x
  3. Step 3: Cross multiply
    2,130,213.90x = 3,194,336.70 × 931,519.20
  4. Step 4: Simplify right side
    2,130,213.90x = 2,975,585,967,314.64
  5. Step 5: Solve for x
    x = 2,975,585,967,314.64/2,130,213.90
  6. Step 6: Final answer
    x = 1,396,848.44

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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.