Home / 3,073.16-4,239.74-1,813.77

Finding the Fourth Proportional to 3,073.16, 4,239.74 and 1,813.77

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Solution

The fourth proportional to 3,073.16, 4,239.74 and 1,813.77 is: 2,502.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,073.16 : 4,239.74 = 1,813.77 : x
  2. Step 2: Convert to fraction form
    3,073.16/4,239.74 = 1,813.77/x
  3. Step 3: Cross multiply
    3,073.16x = 4,239.74 × 1,813.77
  4. Step 4: Simplify right side
    3,073.16x = 7,689,917.75
  5. Step 5: Solve for x
    x = 7,689,917.75/3,073.16
  6. Step 6: Final answer
    x = 2,502.28

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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.