Home / 2,290.45-3,160.74-1,295.74

Finding the Fourth Proportional to 2,290.45, 3,160.74 and 1,295.74

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Solution

The fourth proportional to 2,290.45, 3,160.74 and 1,295.74 is: 1,788.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.45 : 3,160.74 = 1,295.74 : x
  2. Step 2: Convert to fraction form
    2,290.45/3,160.74 = 1,295.74/x
  3. Step 3: Cross multiply
    2,290.45x = 3,160.74 × 1,295.74
  4. Step 4: Simplify right side
    2,290.45x = 4,095,497.25
  5. Step 5: Solve for x
    x = 4,095,497.25/2,290.45
  6. Step 6: Final answer
    x = 1,788.08

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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.