Home / 3,955.03-5,457.98-2,186.70

Finding the Fourth Proportional to 3,955.03, 5,457.98 and 2,186.70

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Solution

The fourth proportional to 3,955.03, 5,457.98 and 2,186.70 is: 3,017.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.03 : 5,457.98 = 2,186.70 : x
  2. Step 2: Convert to fraction form
    3,955.03/5,457.98 = 2,186.70/x
  3. Step 3: Cross multiply
    3,955.03x = 5,457.98 × 2,186.70
  4. Step 4: Simplify right side
    3,955.03x = 11,934,964.87
  5. Step 5: Solve for x
    x = 11,934,964.87/3,955.03
  6. Step 6: Final answer
    x = 3,017.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.