Home / 7,070.12-10,605.20-2,453.12

Finding the Fourth Proportional to 7,070.12, 10,605.20 and 2,453.12

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Solution

The fourth proportional to 7,070.12, 10,605.20 and 2,453.12 is: 3,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.12 : 10,605.20 = 2,453.12 : x
  2. Step 2: Convert to fraction form
    7,070.12/10,605.20 = 2,453.12/x
  3. Step 3: Cross multiply
    7,070.12x = 10,605.20 × 2,453.12
  4. Step 4: Simplify right side
    7,070.12x = 26,015,828.22
  5. Step 5: Solve for x
    x = 26,015,828.22/7,070.12
  6. Step 6: Final answer
    x = 3,679.69

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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.