Home / 1,453.12-2,174.82-1,210.12

Finding the Fourth Proportional to 1,453.12, 2,174.82 and 1,210.12

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Solution

The fourth proportional to 1,453.12, 2,174.82 and 1,210.12 is: 1,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.12 : 2,174.82 = 1,210.12 : x
  2. Step 2: Convert to fraction form
    1,453.12/2,174.82 = 1,210.12/x
  3. Step 3: Cross multiply
    1,453.12x = 2,174.82 × 1,210.12
  4. Step 4: Simplify right side
    1,453.12x = 2,631,793.18
  5. Step 5: Solve for x
    x = 2,631,793.18/1,453.12
  6. Step 6: Final answer
    x = 1,811.13

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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.