Home / 2,430.88-3,355.04-1,382.74

Finding the Fourth Proportional to 2,430.88, 3,355.04 and 1,382.74

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Solution

The fourth proportional to 2,430.88, 3,355.04 and 1,382.74 is: 1,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.88 : 3,355.04 = 1,382.74 : x
  2. Step 2: Convert to fraction form
    2,430.88/3,355.04 = 1,382.74/x
  3. Step 3: Cross multiply
    2,430.88x = 3,355.04 × 1,382.74
  4. Step 4: Simplify right side
    2,430.88x = 4,639,148.01
  5. Step 5: Solve for x
    x = 4,639,148.01/2,430.88
  6. Step 6: Final answer
    x = 1,908.42

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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.