Home / 2,954.87-4,077.74-1,628.58

Finding the Fourth Proportional to 2,954.87, 4,077.74 and 1,628.58

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Solution

The fourth proportional to 2,954.87, 4,077.74 and 1,628.58 is: 2,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.87 : 4,077.74 = 1,628.58 : x
  2. Step 2: Convert to fraction form
    2,954.87/4,077.74 = 1,628.58/x
  3. Step 3: Cross multiply
    2,954.87x = 4,077.74 × 1,628.58
  4. Step 4: Simplify right side
    2,954.87x = 6,640,925.81
  5. Step 5: Solve for x
    x = 6,640,925.81/2,954.87
  6. Step 6: Final answer
    x = 2,247.45

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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.