Home / 3,058.18-4,585.86-977.78

Finding the Fourth Proportional to 3,058.18, 4,585.86 and 977.78

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Solution

The fourth proportional to 3,058.18, 4,585.86 and 977.78 is: 1,466.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.18 : 4,585.86 = 977.78 : x
  2. Step 2: Convert to fraction form
    3,058.18/4,585.86 = 977.78/x
  3. Step 3: Cross multiply
    3,058.18x = 4,585.86 × 977.78
  4. Step 4: Simplify right side
    3,058.18x = 4,483,962.19
  5. Step 5: Solve for x
    x = 4,483,962.19/3,058.18
  6. Step 6: Final answer
    x = 1,466.22

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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.