Home / 2,430.74-3,354.81-1,383.14

Finding the Fourth Proportional to 2,430.74, 3,354.81 and 1,383.14

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Solution

The fourth proportional to 2,430.74, 3,354.81 and 1,383.14 is: 1,908.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.74 : 3,354.81 = 1,383.14 : x
  2. Step 2: Convert to fraction form
    2,430.74/3,354.81 = 1,383.14/x
  3. Step 3: Cross multiply
    2,430.74x = 3,354.81 × 1,383.14
  4. Step 4: Simplify right side
    2,430.74x = 4,640,171.90
  5. Step 5: Solve for x
    x = 4,640,171.90/2,430.74
  6. Step 6: Final answer
    x = 1,908.95

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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.