Home / 3,071.60-4,605.96-1,123.28

Finding the Fourth Proportional to 3,071.60, 4,605.96 and 1,123.28

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Solution

The fourth proportional to 3,071.60, 4,605.96 and 1,123.28 is: 1,684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.60 : 4,605.96 = 1,123.28 : x
  2. Step 2: Convert to fraction form
    3,071.60/4,605.96 = 1,123.28/x
  3. Step 3: Cross multiply
    3,071.60x = 4,605.96 × 1,123.28
  4. Step 4: Simplify right side
    3,071.60x = 5,173,782.75
  5. Step 5: Solve for x
    x = 5,173,782.75/3,071.60
  6. Step 6: Final answer
    x = 1,684.39

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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.