Home / 2,623.42-3,930.85-1,528.71

Finding the Fourth Proportional to 2,623.42, 3,930.85 and 1,528.71

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Solution

The fourth proportional to 2,623.42, 3,930.85 and 1,528.71 is: 2,290.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.42 : 3,930.85 = 1,528.71 : x
  2. Step 2: Convert to fraction form
    2,623.42/3,930.85 = 1,528.71/x
  3. Step 3: Cross multiply
    2,623.42x = 3,930.85 × 1,528.71
  4. Step 4: Simplify right side
    2,623.42x = 6,009,129.70
  5. Step 5: Solve for x
    x = 6,009,129.70/2,623.42
  6. Step 6: Final answer
    x = 2,290.57

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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.