Home / 2,040.87-2,818.69-1,376.57

Finding the Fourth Proportional to 2,040.87, 2,818.69 and 1,376.57

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Solution

The fourth proportional to 2,040.87, 2,818.69 and 1,376.57 is: 1,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.87 : 2,818.69 = 1,376.57 : x
  2. Step 2: Convert to fraction form
    2,040.87/2,818.69 = 1,376.57/x
  3. Step 3: Cross multiply
    2,040.87x = 2,818.69 × 1,376.57
  4. Step 4: Simplify right side
    2,040.87x = 3,880,110.00
  5. Step 5: Solve for x
    x = 3,880,110.00/2,040.87
  6. Step 6: Final answer
    x = 1,901.20

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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.