Home / 2,830.31-4,243.53-1,440.96

Finding the Fourth Proportional to 2,830.31, 4,243.53 and 1,440.96

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Solution

The fourth proportional to 2,830.31, 4,243.53 and 1,440.96 is: 2,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.31 : 4,243.53 = 1,440.96 : x
  2. Step 2: Convert to fraction form
    2,830.31/4,243.53 = 1,440.96/x
  3. Step 3: Cross multiply
    2,830.31x = 4,243.53 × 1,440.96
  4. Step 4: Simplify right side
    2,830.31x = 6,114,736.35
  5. Step 5: Solve for x
    x = 6,114,736.35/2,830.31
  6. Step 6: Final answer
    x = 2,160.45

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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.