Home / 2,953.31-4,430.99-1,311.01

Finding the Fourth Proportional to 2,953.31, 4,430.99 and 1,311.01

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Solution

The fourth proportional to 2,953.31, 4,430.99 and 1,311.01 is: 1,966.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.31 : 4,430.99 = 1,311.01 : x
  2. Step 2: Convert to fraction form
    2,953.31/4,430.99 = 1,311.01/x
  3. Step 3: Cross multiply
    2,953.31x = 4,430.99 × 1,311.01
  4. Step 4: Simplify right side
    2,953.31x = 5,809,043.49
  5. Step 5: Solve for x
    x = 5,809,043.49/2,953.31
  6. Step 6: Final answer
    x = 1,966.96

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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.