Home / 1,437.90-2,151.96-1,071.78

Finding the Fourth Proportional to 1,437.90, 2,151.96 and 1,071.78

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Solution

The fourth proportional to 1,437.90, 2,151.96 and 1,071.78 is: 1,604.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.90 : 2,151.96 = 1,071.78 : x
  2. Step 2: Convert to fraction form
    1,437.90/2,151.96 = 1,071.78/x
  3. Step 3: Cross multiply
    1,437.90x = 2,151.96 × 1,071.78
  4. Step 4: Simplify right side
    1,437.90x = 2,306,427.69
  5. Step 5: Solve for x
    x = 2,306,427.69/1,437.90
  6. Step 6: Final answer
    x = 1,604.03

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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.