Home / 6,412.68-9,620.98-3,125.30

Finding the Fourth Proportional to 6,412.68, 9,620.98 and 3,125.30

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Solution

The fourth proportional to 6,412.68, 9,620.98 and 3,125.30 is: 4,688.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.68 : 9,620.98 = 3,125.30 : x
  2. Step 2: Convert to fraction form
    6,412.68/9,620.98 = 3,125.30/x
  3. Step 3: Cross multiply
    6,412.68x = 9,620.98 × 3,125.30
  4. Step 4: Simplify right side
    6,412.68x = 30,068,448.79
  5. Step 5: Solve for x
    x = 30,068,448.79/6,412.68
  6. Step 6: Final answer
    x = 4,688.91

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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.