Home / 2,376.48-3,278.70-2,190.18

Finding the Fourth Proportional to 2,376.48, 3,278.70 and 2,190.18

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Solution

The fourth proportional to 2,376.48, 3,278.70 and 2,190.18 is: 3,021.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.48 : 3,278.70 = 2,190.18 : x
  2. Step 2: Convert to fraction form
    2,376.48/3,278.70 = 2,190.18/x
  3. Step 3: Cross multiply
    2,376.48x = 3,278.70 × 2,190.18
  4. Step 4: Simplify right side
    2,376.48x = 7,180,943.17
  5. Step 5: Solve for x
    x = 7,180,943.17/2,376.48
  6. Step 6: Final answer
    x = 3,021.67

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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.