Home / 1,897.81-2,618.92-1,058.51

Finding the Fourth Proportional to 1,897.81, 2,618.92 and 1,058.51

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Solution

The fourth proportional to 1,897.81, 2,618.92 and 1,058.51 is: 1,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.81 : 2,618.92 = 1,058.51 : x
  2. Step 2: Convert to fraction form
    1,897.81/2,618.92 = 1,058.51/x
  3. Step 3: Cross multiply
    1,897.81x = 2,618.92 × 1,058.51
  4. Step 4: Simplify right side
    1,897.81x = 2,772,153.01
  5. Step 5: Solve for x
    x = 2,772,153.01/1,897.81
  6. Step 6: Final answer
    x = 1,460.71

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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.