Home / 5,104.64-7,044.80-2,980.84

Finding the Fourth Proportional to 5,104.64, 7,044.80 and 2,980.84

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Solution

The fourth proportional to 5,104.64, 7,044.80 and 2,980.84 is: 4,113.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.64 : 7,044.80 = 2,980.84 : x
  2. Step 2: Convert to fraction form
    5,104.64/7,044.80 = 2,980.84/x
  3. Step 3: Cross multiply
    5,104.64x = 7,044.80 × 2,980.84
  4. Step 4: Simplify right side
    5,104.64x = 20,999,421.63
  5. Step 5: Solve for x
    x = 20,999,421.63/5,104.64
  6. Step 6: Final answer
    x = 4,113.79

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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.