Home / 4,224.32-5,821.44-2,980.16

Finding the Fourth Proportional to 4,224.32, 5,821.44 and 2,980.16

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Solution

The fourth proportional to 4,224.32, 5,821.44 and 2,980.16 is: 4,106.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,224.32 : 5,821.44 = 2,980.16 : x
  2. Step 2: Convert to fraction form
    4,224.32/5,821.44 = 2,980.16/x
  3. Step 3: Cross multiply
    4,224.32x = 5,821.44 × 2,980.16
  4. Step 4: Simplify right side
    4,224.32x = 17,348,822.63
  5. Step 5: Solve for x
    x = 17,348,822.63/4,224.32
  6. Step 6: Final answer
    x = 4,106.89

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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.