Home / 3,070.81-4,237.94-1,811.66

Finding the Fourth Proportional to 3,070.81, 4,237.94 and 1,811.66

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Solution

The fourth proportional to 3,070.81, 4,237.94 and 1,811.66 is: 2,500.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.81 : 4,237.94 = 1,811.66 : x
  2. Step 2: Convert to fraction form
    3,070.81/4,237.94 = 1,811.66/x
  3. Step 3: Cross multiply
    3,070.81x = 4,237.94 × 1,811.66
  4. Step 4: Simplify right side
    3,070.81x = 7,677,697.32
  5. Step 5: Solve for x
    x = 7,677,697.32/3,070.81
  6. Step 6: Final answer
    x = 2,500.22

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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.