Home / 4,674.97-7,012.38-1,390.28

Finding the Fourth Proportional to 4,674.97, 7,012.38 and 1,390.28

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Solution

The fourth proportional to 4,674.97, 7,012.38 and 1,390.28 is: 2,085.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,674.97 : 7,012.38 = 1,390.28 : x
  2. Step 2: Convert to fraction form
    4,674.97/7,012.38 = 1,390.28/x
  3. Step 3: Cross multiply
    4,674.97x = 7,012.38 × 1,390.28
  4. Step 4: Simplify right side
    4,674.97x = 9,749,171.67
  5. Step 5: Solve for x
    x = 9,749,171.67/4,674.97
  6. Step 6: Final answer
    x = 2,085.40

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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.