Home / 2,126.48-2,934.68-1,230.40

Finding the Fourth Proportional to 2,126.48, 2,934.68 and 1,230.40

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Solution

The fourth proportional to 2,126.48, 2,934.68 and 1,230.40 is: 1,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.48 : 2,934.68 = 1,230.40 : x
  2. Step 2: Convert to fraction form
    2,126.48/2,934.68 = 1,230.40/x
  3. Step 3: Cross multiply
    2,126.48x = 2,934.68 × 1,230.40
  4. Step 4: Simplify right side
    2,126.48x = 3,610,830.27
  5. Step 5: Solve for x
    x = 3,610,830.27/2,126.48
  6. Step 6: Final answer
    x = 1,698.03

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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.