Home / 4,021.80-6,030.54-1,247.28

Finding the Fourth Proportional to 4,021.80, 6,030.54 and 1,247.28

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Solution

The fourth proportional to 4,021.80, 6,030.54 and 1,247.28 is: 1,870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.80 : 6,030.54 = 1,247.28 : x
  2. Step 2: Convert to fraction form
    4,021.80/6,030.54 = 1,247.28/x
  3. Step 3: Cross multiply
    4,021.80x = 6,030.54 × 1,247.28
  4. Step 4: Simplify right side
    4,021.80x = 7,521,771.93
  5. Step 5: Solve for x
    x = 7,521,771.93/4,021.80
  6. Step 6: Final answer
    x = 1,870.25

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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.