Home / 4,945.12-7,417.14-1,247.36

Finding the Fourth Proportional to 4,945.12, 7,417.14 and 1,247.36

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Solution

The fourth proportional to 4,945.12, 7,417.14 and 1,247.36 is: 1,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.12 : 7,417.14 = 1,247.36 : x
  2. Step 2: Convert to fraction form
    4,945.12/7,417.14 = 1,247.36/x
  3. Step 3: Cross multiply
    4,945.12x = 7,417.14 × 1,247.36
  4. Step 4: Simplify right side
    4,945.12x = 9,251,843.75
  5. Step 5: Solve for x
    x = 9,251,843.75/4,945.12
  6. Step 6: Final answer
    x = 1,870.90

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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.