Home / 2,143.34-2,957.64-1,246.94

Finding the Fourth Proportional to 2,143.34, 2,957.64 and 1,246.94

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Solution

The fourth proportional to 2,143.34, 2,957.64 and 1,246.94 is: 1,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.34 : 2,957.64 = 1,246.94 : x
  2. Step 2: Convert to fraction form
    2,143.34/2,957.64 = 1,246.94/x
  3. Step 3: Cross multiply
    2,143.34x = 2,957.64 × 1,246.94
  4. Step 4: Simplify right side
    2,143.34x = 3,687,999.62
  5. Step 5: Solve for x
    x = 3,687,999.62/2,143.34
  6. Step 6: Final answer
    x = 1,720.68

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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.