Home / 2,980.09-4,467.43-1,247.77

Finding the Fourth Proportional to 2,980.09, 4,467.43 and 1,247.77

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Solution

The fourth proportional to 2,980.09, 4,467.43 and 1,247.77 is: 1,870.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.09 : 4,467.43 = 1,247.77 : x
  2. Step 2: Convert to fraction form
    2,980.09/4,467.43 = 1,247.77/x
  3. Step 3: Cross multiply
    2,980.09x = 4,467.43 × 1,247.77
  4. Step 4: Simplify right side
    2,980.09x = 5,574,325.13
  5. Step 5: Solve for x
    x = 5,574,325.13/2,980.09
  6. Step 6: Final answer
    x = 1,870.52

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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.