Home / 3,127.80-4,316.46-1,801.77

Finding the Fourth Proportional to 3,127.80, 4,316.46 and 1,801.77

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Solution

The fourth proportional to 3,127.80, 4,316.46 and 1,801.77 is: 2,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.80 : 4,316.46 = 1,801.77 : x
  2. Step 2: Convert to fraction form
    3,127.80/4,316.46 = 1,801.77/x
  3. Step 3: Cross multiply
    3,127.80x = 4,316.46 × 1,801.77
  4. Step 4: Simplify right side
    3,127.80x = 7,777,268.13
  5. Step 5: Solve for x
    x = 7,777,268.13/3,127.80
  6. Step 6: Final answer
    x = 2,486.50

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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.