Home / 1,880.16-2,821.05-1,266.18

Finding the Fourth Proportional to 1,880.16, 2,821.05 and 1,266.18

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Solution

The fourth proportional to 1,880.16, 2,821.05 and 1,266.18 is: 1,899.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.16 : 2,821.05 = 1,266.18 : x
  2. Step 2: Convert to fraction form
    1,880.16/2,821.05 = 1,266.18/x
  3. Step 3: Cross multiply
    1,880.16x = 2,821.05 × 1,266.18
  4. Step 4: Simplify right side
    1,880.16x = 3,571,957.09
  5. Step 5: Solve for x
    x = 3,571,957.09/1,880.16
  6. Step 6: Final answer
    x = 1,899.82

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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.