Home / 2,125.76-2,933.16-1,379.52

Finding the Fourth Proportional to 2,125.76, 2,933.16 and 1,379.52

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Solution

The fourth proportional to 2,125.76, 2,933.16 and 1,379.52 is: 1,903.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.76 : 2,933.16 = 1,379.52 : x
  2. Step 2: Convert to fraction form
    2,125.76/2,933.16 = 1,379.52/x
  3. Step 3: Cross multiply
    2,125.76x = 2,933.16 × 1,379.52
  4. Step 4: Simplify right side
    2,125.76x = 4,046,352.88
  5. Step 5: Solve for x
    x = 4,046,352.88/2,125.76
  6. Step 6: Final answer
    x = 1,903.49

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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.