Home / 1,815.29-2,504.96-1,029.39

Finding the Fourth Proportional to 1,815.29, 2,504.96 and 1,029.39

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Solution

The fourth proportional to 1,815.29, 2,504.96 and 1,029.39 is: 1,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.29 : 2,504.96 = 1,029.39 : x
  2. Step 2: Convert to fraction form
    1,815.29/2,504.96 = 1,029.39/x
  3. Step 3: Cross multiply
    1,815.29x = 2,504.96 × 1,029.39
  4. Step 4: Simplify right side
    1,815.29x = 2,578,580.77
  5. Step 5: Solve for x
    x = 2,578,580.77/1,815.29
  6. Step 6: Final answer
    x = 1,420.48

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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.