Home / 2,980.10-4,114.41-2,699.30

Finding the Fourth Proportional to 2,980.10, 4,114.41 and 2,699.30

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Solution

The fourth proportional to 2,980.10, 4,114.41 and 2,699.30 is: 3,726.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.10 : 4,114.41 = 2,699.30 : x
  2. Step 2: Convert to fraction form
    2,980.10/4,114.41 = 2,699.30/x
  3. Step 3: Cross multiply
    2,980.10x = 4,114.41 × 2,699.30
  4. Step 4: Simplify right side
    2,980.10x = 11,106,026.91
  5. Step 5: Solve for x
    x = 11,106,026.91/2,980.10
  6. Step 6: Final answer
    x = 3,726.73

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1.5x scale

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.