Home / 4,303.20-6,455.04-1,382.40

Finding the Fourth Proportional to 4,303.20, 6,455.04 and 1,382.40

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Solution

The fourth proportional to 4,303.20, 6,455.04 and 1,382.40 is: 2,073.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,303.20 : 6,455.04 = 1,382.40 : x
  2. Step 2: Convert to fraction form
    4,303.20/6,455.04 = 1,382.40/x
  3. Step 3: Cross multiply
    4,303.20x = 6,455.04 × 1,382.40
  4. Step 4: Simplify right side
    4,303.20x = 8,923,447.30
  5. Step 5: Solve for x
    x = 8,923,447.30/4,303.20
  6. Step 6: Final answer
    x = 2,073.68

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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.