Home / 5,317.35-7,970.88-2,978.49

Finding the Fourth Proportional to 5,317.35, 7,970.88 and 2,978.49

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Solution

The fourth proportional to 5,317.35, 7,970.88 and 2,978.49 is: 4,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.35 : 7,970.88 = 2,978.49 : x
  2. Step 2: Convert to fraction form
    5,317.35/7,970.88 = 2,978.49/x
  3. Step 3: Cross multiply
    5,317.35x = 7,970.88 × 2,978.49
  4. Step 4: Simplify right side
    5,317.35x = 23,741,186.37
  5. Step 5: Solve for x
    x = 23,741,186.37/5,317.35
  6. Step 6: Final answer
    x = 4,464.85

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1.5x scale

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.