Home / 3,187.04-4,777.70-1,237.90

Finding the Fourth Proportional to 3,187.04, 4,777.70 and 1,237.90

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Solution

The fourth proportional to 3,187.04, 4,777.70 and 1,237.90 is: 1,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.04 : 4,777.70 = 1,237.90 : x
  2. Step 2: Convert to fraction form
    3,187.04/4,777.70 = 1,237.90/x
  3. Step 3: Cross multiply
    3,187.04x = 4,777.70 × 1,237.90
  4. Step 4: Simplify right side
    3,187.04x = 5,914,314.83
  5. Step 5: Solve for x
    x = 5,914,314.83/3,187.04
  6. Step 6: Final answer
    x = 1,855.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.