Home / 1,677.99-2,315.90-932.19

Finding the Fourth Proportional to 1,677.99, 2,315.90 and 932.19

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Solution

The fourth proportional to 1,677.99, 2,315.90 and 932.19 is: 1,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.99 : 2,315.90 = 932.19 : x
  2. Step 2: Convert to fraction form
    1,677.99/2,315.90 = 932.19/x
  3. Step 3: Cross multiply
    1,677.99x = 2,315.90 × 932.19
  4. Step 4: Simplify right side
    1,677.99x = 2,158,858.82
  5. Step 5: Solve for x
    x = 2,158,858.82/1,677.99
  6. Step 6: Final answer
    x = 1,286.57

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1.5x scale

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.