Home / 4,457.80-6,686.70-4,112.20

Finding the Fourth Proportional to 4,457.80, 6,686.70 and 4,112.20

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Solution

The fourth proportional to 4,457.80, 6,686.70 and 4,112.20 is: 6,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,457.80 : 6,686.70 = 4,112.20 : x
  2. Step 2: Convert to fraction form
    4,457.80/6,686.70 = 4,112.20/x
  3. Step 3: Cross multiply
    4,457.80x = 6,686.70 × 4,112.20
  4. Step 4: Simplify right side
    4,457.80x = 27,497,047.74
  5. Step 5: Solve for x
    x = 27,497,047.74/4,457.80
  6. Step 6: Final answer
    x = 6,168.30

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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.