Home / 6,790.20-10,185.30-4,457.40

Finding the Fourth Proportional to 6,790.20, 10,185.30 and 4,457.40

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Solution

The fourth proportional to 6,790.20, 10,185.30 and 4,457.40 is: 6,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.20 : 10,185.30 = 4,457.40 : x
  2. Step 2: Convert to fraction form
    6,790.20/10,185.30 = 4,457.40/x
  3. Step 3: Cross multiply
    6,790.20x = 10,185.30 × 4,457.40
  4. Step 4: Simplify right side
    6,790.20x = 45,399,956.22
  5. Step 5: Solve for x
    x = 45,399,956.22/6,790.20
  6. Step 6: Final answer
    x = 6,686.10

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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.