Home / 1,437.68-1,980.08-1,328.33

Finding the Fourth Proportional to 1,437.68, 1,980.08 and 1,328.33

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Solution

The fourth proportional to 1,437.68, 1,980.08 and 1,328.33 is: 1,829.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.68 : 1,980.08 = 1,328.33 : x
  2. Step 2: Convert to fraction form
    1,437.68/1,980.08 = 1,328.33/x
  3. Step 3: Cross multiply
    1,437.68x = 1,980.08 × 1,328.33
  4. Step 4: Simplify right side
    1,437.68x = 2,630,183.12
  5. Step 5: Solve for x
    x = 2,630,183.12/1,437.68
  6. Step 6: Final answer
    x = 1,829.47

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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.