Home / 1,126.00-1,688.87-304.36

Finding the Fourth Proportional to 1,126.00, 1,688.87 and 304.36

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Solution

The fourth proportional to 1,126.00, 1,688.87 and 304.36 is: 456.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.00 : 1,688.87 = 304.36 : x
  2. Step 2: Convert to fraction form
    1,126.00/1,688.87 = 304.36/x
  3. Step 3: Cross multiply
    1,126.00x = 1,688.87 × 304.36
  4. Step 4: Simplify right side
    1,126.00x = 514,021.01
  5. Step 5: Solve for x
    x = 514,021.01/1,126.00
  6. Step 6: Final answer
    x = 456.50

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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.