Home / 1,547.91-2,137.19-1,076.09

Finding the Fourth Proportional to 1,547.91, 2,137.19 and 1,076.09

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Solution

The fourth proportional to 1,547.91, 2,137.19 and 1,076.09 is: 1,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.91 : 2,137.19 = 1,076.09 : x
  2. Step 2: Convert to fraction form
    1,547.91/2,137.19 = 1,076.09/x
  3. Step 3: Cross multiply
    1,547.91x = 2,137.19 × 1,076.09
  4. Step 4: Simplify right side
    1,547.91x = 2,299,792.72
  5. Step 5: Solve for x
    x = 2,299,792.72/1,547.91
  6. Step 6: Final answer
    x = 1,485.74

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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.