Home / 2,127.24-2,936.58-1,420.26

Finding the Fourth Proportional to 2,127.24, 2,936.58 and 1,420.26

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Solution

The fourth proportional to 2,127.24, 2,936.58 and 1,420.26 is: 1,960.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.24 : 2,936.58 = 1,420.26 : x
  2. Step 2: Convert to fraction form
    2,127.24/2,936.58 = 1,420.26/x
  3. Step 3: Cross multiply
    2,127.24x = 2,936.58 × 1,420.26
  4. Step 4: Simplify right side
    2,127.24x = 4,170,707.11
  5. Step 5: Solve for x
    x = 4,170,707.11/2,127.24
  6. Step 6: Final answer
    x = 1,960.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.