Home / 2,576.51-3,555.55-1,397.55

Finding the Fourth Proportional to 2,576.51, 3,555.55 and 1,397.55

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Solution

The fourth proportional to 2,576.51, 3,555.55 and 1,397.55 is: 1,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.51 : 3,555.55 = 1,397.55 : x
  2. Step 2: Convert to fraction form
    2,576.51/3,555.55 = 1,397.55/x
  3. Step 3: Cross multiply
    2,576.51x = 3,555.55 × 1,397.55
  4. Step 4: Simplify right side
    2,576.51x = 4,969,066.12
  5. Step 5: Solve for x
    x = 4,969,066.12/2,576.51
  6. Step 6: Final answer
    x = 1,928.60

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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.