Home / 1,554.40-2,331.84-824.56

Finding the Fourth Proportional to 1,554.40, 2,331.84 and 824.56

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Solution

The fourth proportional to 1,554.40, 2,331.84 and 824.56 is: 1,236.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.40 : 2,331.84 = 824.56 : x
  2. Step 2: Convert to fraction form
    1,554.40/2,331.84 = 824.56/x
  3. Step 3: Cross multiply
    1,554.40x = 2,331.84 × 824.56
  4. Step 4: Simplify right side
    1,554.40x = 1,922,741.99
  5. Step 5: Solve for x
    x = 1,922,741.99/1,554.40
  6. Step 6: Final answer
    x = 1,236.97

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1.5x scale

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.