Home / 2,576.40-3,555.44-1,397.46

Finding the Fourth Proportional to 2,576.40, 3,555.44 and 1,397.46

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Solution

The fourth proportional to 2,576.40, 3,555.44 and 1,397.46 is: 1,928.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.40 : 3,555.44 = 1,397.46 : x
  2. Step 2: Convert to fraction form
    2,576.40/3,555.44 = 1,397.46/x
  3. Step 3: Cross multiply
    2,576.40x = 3,555.44 × 1,397.46
  4. Step 4: Simplify right side
    2,576.40x = 4,968,578.20
  5. Step 5: Solve for x
    x = 4,968,578.20/2,576.40
  6. Step 6: Final answer
    x = 1,928.50

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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.