Home / 2,124.70-2,933.15-1,328.46

Finding the Fourth Proportional to 2,124.70, 2,933.15 and 1,328.46

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Solution

The fourth proportional to 2,124.70, 2,933.15 and 1,328.46 is: 1,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.70 : 2,933.15 = 1,328.46 : x
  2. Step 2: Convert to fraction form
    2,124.70/2,933.15 = 1,328.46/x
  3. Step 3: Cross multiply
    2,124.70x = 2,933.15 × 1,328.46
  4. Step 4: Simplify right side
    2,124.70x = 3,896,565.81
  5. Step 5: Solve for x
    x = 3,896,565.81/2,124.70
  6. Step 6: Final answer
    x = 1,833.94

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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.