Home / 1,977.63-2,948.81-1,953.41

Finding the Fourth Proportional to 1,977.63, 2,948.81 and 1,953.41

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Solution

The fourth proportional to 1,977.63, 2,948.81 and 1,953.41 is: 2,912.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.63 : 2,948.81 = 1,953.41 : x
  2. Step 2: Convert to fraction form
    1,977.63/2,948.81 = 1,953.41/x
  3. Step 3: Cross multiply
    1,977.63x = 2,948.81 × 1,953.41
  4. Step 4: Simplify right side
    1,977.63x = 5,760,210.43
  5. Step 5: Solve for x
    x = 5,760,210.43/1,977.63
  6. Step 6: Final answer
    x = 2,912.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.