Home / 2,576.48-3,555.56-1,397.55

Finding the Fourth Proportional to 2,576.48, 3,555.56 and 1,397.55

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Solution

The fourth proportional to 2,576.48, 3,555.56 and 1,397.55 is: 1,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.48 : 3,555.56 = 1,397.55 : x
  2. Step 2: Convert to fraction form
    2,576.48/3,555.56 = 1,397.55/x
  3. Step 3: Cross multiply
    2,576.48x = 3,555.56 × 1,397.55
  4. Step 4: Simplify right side
    2,576.48x = 4,969,089.71
  5. Step 5: Solve for x
    x = 4,969,089.71/2,576.48
  6. Step 6: Final answer
    x = 1,928.64

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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.