Home / 4,718.60-7,081.26-2,123.72

Finding the Fourth Proportional to 4,718.60, 7,081.26 and 2,123.72

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Solution

The fourth proportional to 4,718.60, 7,081.26 and 2,123.72 is: 3,187.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.60 : 7,081.26 = 2,123.72 : x
  2. Step 2: Convert to fraction form
    4,718.60/7,081.26 = 2,123.72/x
  3. Step 3: Cross multiply
    4,718.60x = 7,081.26 × 2,123.72
  4. Step 4: Simplify right side
    4,718.60x = 15,038,613.49
  5. Step 5: Solve for x
    x = 15,038,613.49/4,718.60
  6. Step 6: Final answer
    x = 3,187.09

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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.