Home / 1,815.08-2,503.74-1,068.68

Finding the Fourth Proportional to 1,815.08, 2,503.74 and 1,068.68

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Solution

The fourth proportional to 1,815.08, 2,503.74 and 1,068.68 is: 1,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.08 : 2,503.74 = 1,068.68 : x
  2. Step 2: Convert to fraction form
    1,815.08/2,503.74 = 1,068.68/x
  3. Step 3: Cross multiply
    1,815.08x = 2,503.74 × 1,068.68
  4. Step 4: Simplify right side
    1,815.08x = 2,675,696.86
  5. Step 5: Solve for x
    x = 2,675,696.86/1,815.08
  6. Step 6: Final answer
    x = 1,474.15

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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.