Home / 2,977.36-4,466.25-1,128.13

Finding the Fourth Proportional to 2,977.36, 4,466.25 and 1,128.13

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Solution

The fourth proportional to 2,977.36, 4,466.25 and 1,128.13 is: 1,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.36 : 4,466.25 = 1,128.13 : x
  2. Step 2: Convert to fraction form
    2,977.36/4,466.25 = 1,128.13/x
  3. Step 3: Cross multiply
    2,977.36x = 4,466.25 × 1,128.13
  4. Step 4: Simplify right side
    2,977.36x = 5,038,510.61
  5. Step 5: Solve for x
    x = 5,038,510.61/2,977.36
  6. Step 6: Final answer
    x = 1,692.27

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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.