Home / 2,430.89-3,354.68-1,382.99

Finding the Fourth Proportional to 2,430.89, 3,354.68 and 1,382.99

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Solution

The fourth proportional to 2,430.89, 3,354.68 and 1,382.99 is: 1,908.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.89 : 3,354.68 = 1,382.99 : x
  2. Step 2: Convert to fraction form
    2,430.89/3,354.68 = 1,382.99/x
  3. Step 3: Cross multiply
    2,430.89x = 3,354.68 × 1,382.99
  4. Step 4: Simplify right side
    2,430.89x = 4,639,488.89
  5. Step 5: Solve for x
    x = 4,639,488.89/2,430.89
  6. Step 6: Final answer
    x = 1,908.56

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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.