Home / 5,688.64-8,533.60-2,180.80

Finding the Fourth Proportional to 5,688.64, 8,533.60 and 2,180.80

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Solution

The fourth proportional to 5,688.64, 8,533.60 and 2,180.80 is: 3,271.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.64 : 8,533.60 = 2,180.80 : x
  2. Step 2: Convert to fraction form
    5,688.64/8,533.60 = 2,180.80/x
  3. Step 3: Cross multiply
    5,688.64x = 8,533.60 × 2,180.80
  4. Step 4: Simplify right side
    5,688.64x = 18,610,074.88
  5. Step 5: Solve for x
    x = 18,610,074.88/5,688.64
  6. Step 6: Final answer
    x = 3,271.45

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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.