Home / 3,123.53-4,684.91-1,953.63

Finding the Fourth Proportional to 3,123.53, 4,684.91 and 1,953.63

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Solution

The fourth proportional to 3,123.53, 4,684.91 and 1,953.63 is: 2,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.53 : 4,684.91 = 1,953.63 : x
  2. Step 2: Convert to fraction form
    3,123.53/4,684.91 = 1,953.63/x
  3. Step 3: Cross multiply
    3,123.53x = 4,684.91 × 1,953.63
  4. Step 4: Simplify right side
    3,123.53x = 9,152,570.96
  5. Step 5: Solve for x
    x = 9,152,570.96/3,123.53
  6. Step 6: Final answer
    x = 2,930.21

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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.