Home / 4,485.40-6,728.14-1,563.70

Finding the Fourth Proportional to 4,485.40, 6,728.14 and 1,563.70

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Solution

The fourth proportional to 4,485.40, 6,728.14 and 1,563.70 is: 2,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.40 : 6,728.14 = 1,563.70 : x
  2. Step 2: Convert to fraction form
    4,485.40/6,728.14 = 1,563.70/x
  3. Step 3: Cross multiply
    4,485.40x = 6,728.14 × 1,563.70
  4. Step 4: Simplify right side
    4,485.40x = 10,520,792.52
  5. Step 5: Solve for x
    x = 10,520,792.52/4,485.40
  6. Step 6: Final answer
    x = 2,345.56

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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.