Home / 3,072.04-4,239.71-1,813.51

Finding the Fourth Proportional to 3,072.04, 4,239.71 and 1,813.51

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Solution

The fourth proportional to 3,072.04, 4,239.71 and 1,813.51 is: 2,502.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.04 : 4,239.71 = 1,813.51 : x
  2. Step 2: Convert to fraction form
    3,072.04/4,239.71 = 1,813.51/x
  3. Step 3: Cross multiply
    3,072.04x = 4,239.71 × 1,813.51
  4. Step 4: Simplify right side
    3,072.04x = 7,688,739.82
  5. Step 5: Solve for x
    x = 7,688,739.82/3,072.04
  6. Step 6: Final answer
    x = 2,502.82

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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.