Home / 1,491.16-2,058.02-1,072.90

Finding the Fourth Proportional to 1,491.16, 2,058.02 and 1,072.90

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Solution

The fourth proportional to 1,491.16, 2,058.02 and 1,072.90 is: 1,480.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.16 : 2,058.02 = 1,072.90 : x
  2. Step 2: Convert to fraction form
    1,491.16/2,058.02 = 1,072.90/x
  3. Step 3: Cross multiply
    1,491.16x = 2,058.02 × 1,072.90
  4. Step 4: Simplify right side
    1,491.16x = 2,208,045.35
  5. Step 5: Solve for x
    x = 2,208,045.35/1,491.16
  6. Step 6: Final answer
    x = 1,480.76

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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.