Home / 1,146.99-1,719.81-453.09

Finding the Fourth Proportional to 1,146.99, 1,719.81 and 453.09

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Solution

The fourth proportional to 1,146.99, 1,719.81 and 453.09 is: 679.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.99 : 1,719.81 = 453.09 : x
  2. Step 2: Convert to fraction form
    1,146.99/1,719.81 = 453.09/x
  3. Step 3: Cross multiply
    1,146.99x = 1,719.81 × 453.09
  4. Step 4: Simplify right side
    1,146.99x = 779,228.71
  5. Step 5: Solve for x
    x = 779,228.71/1,146.99
  6. Step 6: Final answer
    x = 679.37

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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.