Home / 6,861.11-10,291.69-1,666.98

Finding the Fourth Proportional to 6,861.11, 10,291.69 and 1,666.98

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Solution

The fourth proportional to 6,861.11, 10,291.69 and 1,666.98 is: 2,500.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.11 : 10,291.69 = 1,666.98 : x
  2. Step 2: Convert to fraction form
    6,861.11/10,291.69 = 1,666.98/x
  3. Step 3: Cross multiply
    6,861.11x = 10,291.69 × 1,666.98
  4. Step 4: Simplify right side
    6,861.11x = 17,156,041.40
  5. Step 5: Solve for x
    x = 17,156,041.40/6,861.11
  6. Step 6: Final answer
    x = 2,500.48

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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.