Home / 4,687.20-7,029.72-1,400.22

Finding the Fourth Proportional to 4,687.20, 7,029.72 and 1,400.22

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Solution

The fourth proportional to 4,687.20, 7,029.72 and 1,400.22 is: 2,100.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.20 : 7,029.72 = 1,400.22 : x
  2. Step 2: Convert to fraction form
    4,687.20/7,029.72 = 1,400.22/x
  3. Step 3: Cross multiply
    4,687.20x = 7,029.72 × 1,400.22
  4. Step 4: Simplify right side
    4,687.20x = 9,843,154.54
  5. Step 5: Solve for x
    x = 9,843,154.54/4,687.20
  6. Step 6: Final answer
    x = 2,100.01

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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.