Home / 2,142.14-2,956.47-1,356.26

Finding the Fourth Proportional to 2,142.14, 2,956.47 and 1,356.26

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Solution

The fourth proportional to 2,142.14, 2,956.47 and 1,356.26 is: 1,871.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.14 : 2,956.47 = 1,356.26 : x
  2. Step 2: Convert to fraction form
    2,142.14/2,956.47 = 1,356.26/x
  3. Step 3: Cross multiply
    2,142.14x = 2,956.47 × 1,356.26
  4. Step 4: Simplify right side
    2,142.14x = 4,009,742.00
  5. Step 5: Solve for x
    x = 4,009,742.00/2,142.14
  6. Step 6: Final answer
    x = 1,871.84

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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.