Home / 7,091.60-10,636.58-1,897.88

Finding the Fourth Proportional to 7,091.60, 10,636.58 and 1,897.88

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Solution

The fourth proportional to 7,091.60, 10,636.58 and 1,897.88 is: 2,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.60 : 10,636.58 = 1,897.88 : x
  2. Step 2: Convert to fraction form
    7,091.60/10,636.58 = 1,897.88/x
  3. Step 3: Cross multiply
    7,091.60x = 10,636.58 × 1,897.88
  4. Step 4: Simplify right side
    7,091.60x = 20,186,899.27
  5. Step 5: Solve for x
    x = 20,186,899.27/7,091.60
  6. Step 6: Final answer
    x = 2,846.60

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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.