Home / 2,547.69-3,819.07-1,392.63

Finding the Fourth Proportional to 2,547.69, 3,819.07 and 1,392.63

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Solution

The fourth proportional to 2,547.69, 3,819.07 and 1,392.63 is: 2,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.69 : 3,819.07 = 1,392.63 : x
  2. Step 2: Convert to fraction form
    2,547.69/3,819.07 = 1,392.63/x
  3. Step 3: Cross multiply
    2,547.69x = 3,819.07 × 1,392.63
  4. Step 4: Simplify right side
    2,547.69x = 5,318,551.45
  5. Step 5: Solve for x
    x = 5,318,551.45/2,547.69
  6. Step 6: Final answer
    x = 2,087.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.