Home / 2,126.48-2,934.54-1,242.30

Finding the Fourth Proportional to 2,126.48, 2,934.54 and 1,242.30

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Solution

The fourth proportional to 2,126.48, 2,934.54 and 1,242.30 is: 1,714.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.48 : 2,934.54 = 1,242.30 : x
  2. Step 2: Convert to fraction form
    2,126.48/2,934.54 = 1,242.30/x
  3. Step 3: Cross multiply
    2,126.48x = 2,934.54 × 1,242.30
  4. Step 4: Simplify right side
    2,126.48x = 3,645,579.04
  5. Step 5: Solve for x
    x = 3,645,579.04/2,126.48
  6. Step 6: Final answer
    x = 1,714.37

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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.