Home / 2,143.04-2,957.28-1,246.64

Finding the Fourth Proportional to 2,143.04, 2,957.28 and 1,246.64

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Solution

The fourth proportional to 2,143.04, 2,957.28 and 1,246.64 is: 1,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.04 : 2,957.28 = 1,246.64 : x
  2. Step 2: Convert to fraction form
    2,143.04/2,957.28 = 1,246.64/x
  3. Step 3: Cross multiply
    2,143.04x = 2,957.28 × 1,246.64
  4. Step 4: Simplify right side
    2,143.04x = 3,686,663.54
  5. Step 5: Solve for x
    x = 3,686,663.54/2,143.04
  6. Step 6: Final answer
    x = 1,720.30

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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.