Home / 2,309.04-3,440.34-2,160

Finding the Fourth Proportional to 2,309.04, 3,440.34 and 2,160

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Solution

The fourth proportional to 2,309.04, 3,440.34 and 2,160 is: 3,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.04 : 3,440.34 = 2,160 : x
  2. Step 2: Convert to fraction form
    2,309.04/3,440.34 = 2,160/x
  3. Step 3: Cross multiply
    2,309.04x = 3,440.34 × 2,160
  4. Step 4: Simplify right side
    2,309.04x = 7,431,134.40
  5. Step 5: Solve for x
    x = 7,431,134.40/2,309.04
  6. Step 6: Final answer
    x = 3,218.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.