Home / 3,237.99-4,857.20-1,290.15

Finding the Fourth Proportional to 3,237.99, 4,857.20 and 1,290.15

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Solution

The fourth proportional to 3,237.99, 4,857.20 and 1,290.15 is: 1,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.99 : 4,857.20 = 1,290.15 : x
  2. Step 2: Convert to fraction form
    3,237.99/4,857.20 = 1,290.15/x
  3. Step 3: Cross multiply
    3,237.99x = 4,857.20 × 1,290.15
  4. Step 4: Simplify right side
    3,237.99x = 6,266,510.13
  5. Step 5: Solve for x
    x = 6,266,510.13/3,237.99
  6. Step 6: Final answer
    x = 1,935.31

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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.