Home / 2,670.95-3,680.70-1,923.50

Finding the Fourth Proportional to 2,670.95, 3,680.70 and 1,923.50

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Solution

The fourth proportional to 2,670.95, 3,680.70 and 1,923.50 is: 2,650.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.95 : 3,680.70 = 1,923.50 : x
  2. Step 2: Convert to fraction form
    2,670.95/3,680.70 = 1,923.50/x
  3. Step 3: Cross multiply
    2,670.95x = 3,680.70 × 1,923.50
  4. Step 4: Simplify right side
    2,670.95x = 7,079,818.55
  5. Step 5: Solve for x
    x = 7,079,818.55/2,670.95
  6. Step 6: Final answer
    x = 2,650.67

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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.