Home / 3,078.51-4,616.85-1,130.87

Finding the Fourth Proportional to 3,078.51, 4,616.85 and 1,130.87

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Solution

The fourth proportional to 3,078.51, 4,616.85 and 1,130.87 is: 1,695.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.51 : 4,616.85 = 1,130.87 : x
  2. Step 2: Convert to fraction form
    3,078.51/4,616.85 = 1,130.87/x
  3. Step 3: Cross multiply
    3,078.51x = 4,616.85 × 1,130.87
  4. Step 4: Simplify right side
    3,078.51x = 5,221,038.32
  5. Step 5: Solve for x
    x = 5,221,038.32/3,078.51
  6. Step 6: Final answer
    x = 1,695.96

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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.