Home / 3,077.78-4,617.48-1,130

Finding the Fourth Proportional to 3,077.78, 4,617.48 and 1,130

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Solution

The fourth proportional to 3,077.78, 4,617.48 and 1,130 is: 1,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.78 : 4,617.48 = 1,130 : x
  2. Step 2: Convert to fraction form
    3,077.78/4,617.48 = 1,130/x
  3. Step 3: Cross multiply
    3,077.78x = 4,617.48 × 1,130
  4. Step 4: Simplify right side
    3,077.78x = 5,217,752.40
  5. Step 5: Solve for x
    x = 5,217,752.40/3,077.78
  6. Step 6: Final answer
    x = 1,695.30

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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.