Home / 1,880.29-2,821.10-841.03

Finding the Fourth Proportional to 1,880.29, 2,821.10 and 841.03

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Solution

The fourth proportional to 1,880.29, 2,821.10 and 841.03 is: 1,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.29 : 2,821.10 = 841.03 : x
  2. Step 2: Convert to fraction form
    1,880.29/2,821.10 = 841.03/x
  3. Step 3: Cross multiply
    1,880.29x = 2,821.10 × 841.03
  4. Step 4: Simplify right side
    1,880.29x = 2,372,629.73
  5. Step 5: Solve for x
    x = 2,372,629.73/1,880.29
  6. Step 6: Final answer
    x = 1,261.84

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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.