Home / 7,279.50-10,045.35-4,135.62

Finding the Fourth Proportional to 7,279.50, 10,045.35 and 4,135.62

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Solution

The fourth proportional to 7,279.50, 10,045.35 and 4,135.62 is: 5,706.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.50 : 10,045.35 = 4,135.62 : x
  2. Step 2: Convert to fraction form
    7,279.50/10,045.35 = 4,135.62/x
  3. Step 3: Cross multiply
    7,279.50x = 10,045.35 × 4,135.62
  4. Step 4: Simplify right side
    7,279.50x = 41,543,750.37
  5. Step 5: Solve for x
    x = 41,543,750.37/7,279.50
  6. Step 6: Final answer
    x = 5,706.95

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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.