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Finding the Fourth Proportional to 7,300.19, 10,074.26 and 3,988.19

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Solution

The fourth proportional to 7,300.19, 10,074.26 and 3,988.19 is: 5,503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,300.19 : 10,074.26 = 3,988.19 : x
  2. Step 2: Convert to fraction form
    7,300.19/10,074.26 = 3,988.19/x
  3. Step 3: Cross multiply
    7,300.19x = 10,074.26 × 3,988.19
  4. Step 4: Simplify right side
    7,300.19x = 40,178,037.80
  5. Step 5: Solve for x
    x = 40,178,037.80/7,300.19
  6. Step 6: Final answer
    x = 5,503.70

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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.