Home / 1,639.26-2,445.05-1,376.19

Finding the Fourth Proportional to 1,639.26, 2,445.05 and 1,376.19

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Solution

The fourth proportional to 1,639.26, 2,445.05 and 1,376.19 is: 2,052.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.26 : 2,445.05 = 1,376.19 : x
  2. Step 2: Convert to fraction form
    1,639.26/2,445.05 = 1,376.19/x
  3. Step 3: Cross multiply
    1,639.26x = 2,445.05 × 1,376.19
  4. Step 4: Simplify right side
    1,639.26x = 3,364,856.80
  5. Step 5: Solve for x
    x = 3,364,856.80/1,639.26
  6. Step 6: Final answer
    x = 2,052.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.