Home / 1,453.37-2,182.10-1,428.76

Finding the Fourth Proportional to 1,453.37, 2,182.10 and 1,428.76

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Solution

The fourth proportional to 1,453.37, 2,182.10 and 1,428.76 is: 2,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.37 : 2,182.10 = 1,428.76 : x
  2. Step 2: Convert to fraction form
    1,453.37/2,182.10 = 1,428.76/x
  3. Step 3: Cross multiply
    1,453.37x = 2,182.10 × 1,428.76
  4. Step 4: Simplify right side
    1,453.37x = 3,117,697.20
  5. Step 5: Solve for x
    x = 3,117,697.20/1,453.37
  6. Step 6: Final answer
    x = 2,145.15

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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.