Home / 4,242.51-6,363.77-1,321.11

Finding the Fourth Proportional to 4,242.51, 6,363.77 and 1,321.11

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Solution

The fourth proportional to 4,242.51, 6,363.77 and 1,321.11 is: 1,981.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.51 : 6,363.77 = 1,321.11 : x
  2. Step 2: Convert to fraction form
    4,242.51/6,363.77 = 1,321.11/x
  3. Step 3: Cross multiply
    4,242.51x = 6,363.77 × 1,321.11
  4. Step 4: Simplify right side
    4,242.51x = 8,407,233.58
  5. Step 5: Solve for x
    x = 8,407,233.58/4,242.51
  6. Step 6: Final answer
    x = 1,981.67

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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.