Home / 1,629.81-2,248.61-1,040.53

Finding the Fourth Proportional to 1,629.81, 2,248.61 and 1,040.53

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Solution

The fourth proportional to 1,629.81, 2,248.61 and 1,040.53 is: 1,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.81 : 2,248.61 = 1,040.53 : x
  2. Step 2: Convert to fraction form
    1,629.81/2,248.61 = 1,040.53/x
  3. Step 3: Cross multiply
    1,629.81x = 2,248.61 × 1,040.53
  4. Step 4: Simplify right side
    1,629.81x = 2,339,746.16
  5. Step 5: Solve for x
    x = 2,339,746.16/1,629.81
  6. Step 6: Final answer
    x = 1,435.59

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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.