Home / 2,130.36-2,939.44-1,246.08

Finding the Fourth Proportional to 2,130.36, 2,939.44 and 1,246.08

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Solution

The fourth proportional to 2,130.36, 2,939.44 and 1,246.08 is: 1,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.36 : 2,939.44 = 1,246.08 : x
  2. Step 2: Convert to fraction form
    2,130.36/2,939.44 = 1,246.08/x
  3. Step 3: Cross multiply
    2,130.36x = 2,939.44 × 1,246.08
  4. Step 4: Simplify right side
    2,130.36x = 3,662,777.40
  5. Step 5: Solve for x
    x = 3,662,777.40/2,130.36
  6. Step 6: Final answer
    x = 1,719.32

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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.