Home / 3,123-4,307.56-3,020.04

Finding the Fourth Proportional to 3,123, 4,307.56 and 3,020.04

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Solution

The fourth proportional to 3,123, 4,307.56 and 3,020.04 is: 4,165.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123 : 4,307.56 = 3,020.04 : x
  2. Step 2: Convert to fraction form
    3,123/4,307.56 = 3,020.04/x
  3. Step 3: Cross multiply
    3,123x = 4,307.56 × 3,020.04
  4. Step 4: Simplify right side
    3,123x = 13,008,995.95
  5. Step 5: Solve for x
    x = 13,008,995.95/3,123
  6. Step 6: Final answer
    x = 4,165.54

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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.