Home / 1,277.10-1,912.41-1,058.40

Finding the Fourth Proportional to 1,277.10, 1,912.41 and 1,058.40

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Solution

The fourth proportional to 1,277.10, 1,912.41 and 1,058.40 is: 1,584.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.10 : 1,912.41 = 1,058.40 : x
  2. Step 2: Convert to fraction form
    1,277.10/1,912.41 = 1,058.40/x
  3. Step 3: Cross multiply
    1,277.10x = 1,912.41 × 1,058.40
  4. Step 4: Simplify right side
    1,277.10x = 2,024,094.74
  5. Step 5: Solve for x
    x = 2,024,094.74/1,277.10
  6. Step 6: Final answer
    x = 1,584.91

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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.