Home / 2,576.20-3,870.47-1,653.57

Finding the Fourth Proportional to 2,576.20, 3,870.47 and 1,653.57

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Solution

The fourth proportional to 2,576.20, 3,870.47 and 1,653.57 is: 2,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.20 : 3,870.47 = 1,653.57 : x
  2. Step 2: Convert to fraction form
    2,576.20/3,870.47 = 1,653.57/x
  3. Step 3: Cross multiply
    2,576.20x = 3,870.47 × 1,653.57
  4. Step 4: Simplify right side
    2,576.20x = 6,400,093.08
  5. Step 5: Solve for x
    x = 6,400,093.08/2,576.20
  6. Step 6: Final answer
    x = 2,484.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.