Home / 6,431.28-9,647.25-1,814.64

Finding the Fourth Proportional to 6,431.28, 9,647.25 and 1,814.64

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Solution

The fourth proportional to 6,431.28, 9,647.25 and 1,814.64 is: 2,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.28 : 9,647.25 = 1,814.64 : x
  2. Step 2: Convert to fraction form
    6,431.28/9,647.25 = 1,814.64/x
  3. Step 3: Cross multiply
    6,431.28x = 9,647.25 × 1,814.64
  4. Step 4: Simplify right side
    6,431.28x = 17,506,285.74
  5. Step 5: Solve for x
    x = 17,506,285.74/6,431.28
  6. Step 6: Final answer
    x = 2,722.05

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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.