Home / 5,535.20-8,303.88-1,639.64

Finding the Fourth Proportional to 5,535.20, 8,303.88 and 1,639.64

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Solution

The fourth proportional to 5,535.20, 8,303.88 and 1,639.64 is: 2,459.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.20 : 8,303.88 = 1,639.64 : x
  2. Step 2: Convert to fraction form
    5,535.20/8,303.88 = 1,639.64/x
  3. Step 3: Cross multiply
    5,535.20x = 8,303.88 × 1,639.64
  4. Step 4: Simplify right side
    5,535.20x = 13,615,373.80
  5. Step 5: Solve for x
    x = 13,615,373.80/5,535.20
  6. Step 6: Final answer
    x = 2,459.78

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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.