Home / 4,206.78-6,309.63-1,284.30

Finding the Fourth Proportional to 4,206.78, 6,309.63 and 1,284.30

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Solution

The fourth proportional to 4,206.78, 6,309.63 and 1,284.30 is: 1,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,206.78 : 6,309.63 = 1,284.30 : x
  2. Step 2: Convert to fraction form
    4,206.78/6,309.63 = 1,284.30/x
  3. Step 3: Cross multiply
    4,206.78x = 6,309.63 × 1,284.30
  4. Step 4: Simplify right side
    4,206.78x = 8,103,457.81
  5. Step 5: Solve for x
    x = 8,103,457.81/4,206.78
  6. Step 6: Final answer
    x = 1,926.29

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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.