Home / 1,058.78-1,461.28-1,012.06

Finding the Fourth Proportional to 1,058.78, 1,461.28 and 1,012.06

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Solution

The fourth proportional to 1,058.78, 1,461.28 and 1,012.06 is: 1,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.78 : 1,461.28 = 1,012.06 : x
  2. Step 2: Convert to fraction form
    1,058.78/1,461.28 = 1,012.06/x
  3. Step 3: Cross multiply
    1,058.78x = 1,461.28 × 1,012.06
  4. Step 4: Simplify right side
    1,058.78x = 1,478,895.73
  5. Step 5: Solve for x
    x = 1,478,895.73/1,058.78
  6. Step 6: Final answer
    x = 1,396.80

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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.