Home / 5,128.03-7,077.58-4,894.29

Finding the Fourth Proportional to 5,128.03, 7,077.58 and 4,894.29

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Solution

The fourth proportional to 5,128.03, 7,077.58 and 4,894.29 is: 6,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.03 : 7,077.58 = 4,894.29 : x
  2. Step 2: Convert to fraction form
    5,128.03/7,077.58 = 4,894.29/x
  3. Step 3: Cross multiply
    5,128.03x = 7,077.58 × 4,894.29
  4. Step 4: Simplify right side
    5,128.03x = 34,639,716.78
  5. Step 5: Solve for x
    x = 34,639,716.78/5,128.03
  6. Step 6: Final answer
    x = 6,754.98

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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.