Home / 1,869.63-2,815.58-1,629.06

Finding the Fourth Proportional to 1,869.63, 2,815.58 and 1,629.06

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Solution

The fourth proportional to 1,869.63, 2,815.58 and 1,629.06 is: 2,453.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.63 : 2,815.58 = 1,629.06 : x
  2. Step 2: Convert to fraction form
    1,869.63/2,815.58 = 1,629.06/x
  3. Step 3: Cross multiply
    1,869.63x = 2,815.58 × 1,629.06
  4. Step 4: Simplify right side
    1,869.63x = 4,586,740.61
  5. Step 5: Solve for x
    x = 4,586,740.61/1,869.63
  6. Step 6: Final answer
    x = 2,453.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.