Home / 1,897.72-2,618.75-1,058.36

Finding the Fourth Proportional to 1,897.72, 2,618.75 and 1,058.36

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Solution

The fourth proportional to 1,897.72, 2,618.75 and 1,058.36 is: 1,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.72 : 2,618.75 = 1,058.36 : x
  2. Step 2: Convert to fraction form
    1,897.72/2,618.75 = 1,058.36/x
  3. Step 3: Cross multiply
    1,897.72x = 2,618.75 × 1,058.36
  4. Step 4: Simplify right side
    1,897.72x = 2,771,569.80
  5. Step 5: Solve for x
    x = 2,771,569.80/1,897.72
  6. Step 6: Final answer
    x = 1,460.48

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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.