Home / 2,263.80-3,124.28-1,379.68

Finding the Fourth Proportional to 2,263.80, 3,124.28 and 1,379.68

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Solution

The fourth proportional to 2,263.80, 3,124.28 and 1,379.68 is: 1,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.80 : 3,124.28 = 1,379.68 : x
  2. Step 2: Convert to fraction form
    2,263.80/3,124.28 = 1,379.68/x
  3. Step 3: Cross multiply
    2,263.80x = 3,124.28 × 1,379.68
  4. Step 4: Simplify right side
    2,263.80x = 4,310,506.63
  5. Step 5: Solve for x
    x = 4,310,506.63/2,263.80
  6. Step 6: Final answer
    x = 1,904.10

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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.