Home / 2,576.43-3,555.48-1,397.51

Finding the Fourth Proportional to 2,576.43, 3,555.48 and 1,397.51

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Solution

The fourth proportional to 2,576.43, 3,555.48 and 1,397.51 is: 1,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.43 : 3,555.48 = 1,397.51 : x
  2. Step 2: Convert to fraction form
    2,576.43/3,555.48 = 1,397.51/x
  3. Step 3: Cross multiply
    2,576.43x = 3,555.48 × 1,397.51
  4. Step 4: Simplify right side
    2,576.43x = 4,968,818.85
  5. Step 5: Solve for x
    x = 4,968,818.85/2,576.43
  6. Step 6: Final answer
    x = 1,928.57

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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.