Home / 2,980.47-4,448.91-2,763.63

Finding the Fourth Proportional to 2,980.47, 4,448.91 and 2,763.63

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Solution

The fourth proportional to 2,980.47, 4,448.91 and 2,763.63 is: 4,125.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.47 : 4,448.91 = 2,763.63 : x
  2. Step 2: Convert to fraction form
    2,980.47/4,448.91 = 2,763.63/x
  3. Step 3: Cross multiply
    2,980.47x = 4,448.91 × 2,763.63
  4. Step 4: Simplify right side
    2,980.47x = 12,295,153.88
  5. Step 5: Solve for x
    x = 12,295,153.88/2,980.47
  6. Step 6: Final answer
    x = 4,125.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.