Home / 5,315.40-7,954.20-4,629.60

Finding the Fourth Proportional to 5,315.40, 7,954.20 and 4,629.60

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Solution

The fourth proportional to 5,315.40, 7,954.20 and 4,629.60 is: 6,927.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.40 : 7,954.20 = 4,629.60 : x
  2. Step 2: Convert to fraction form
    5,315.40/7,954.20 = 4,629.60/x
  3. Step 3: Cross multiply
    5,315.40x = 7,954.20 × 4,629.60
  4. Step 4: Simplify right side
    5,315.40x = 36,824,764.32
  5. Step 5: Solve for x
    x = 36,824,764.32/5,315.40
  6. Step 6: Final answer
    x = 6,927.94

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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.