Home / 1,665.51-2,299.50-1,036.95

Finding the Fourth Proportional to 1,665.51, 2,299.50 and 1,036.95

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Solution

The fourth proportional to 1,665.51, 2,299.50 and 1,036.95 is: 1,431.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.51 : 2,299.50 = 1,036.95 : x
  2. Step 2: Convert to fraction form
    1,665.51/2,299.50 = 1,036.95/x
  3. Step 3: Cross multiply
    1,665.51x = 2,299.50 × 1,036.95
  4. Step 4: Simplify right side
    1,665.51x = 2,384,466.53
  5. Step 5: Solve for x
    x = 2,384,466.53/1,665.51
  6. Step 6: Final answer
    x = 1,431.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.