Home / 4,218.15-6,327.21-1,140.15

Finding the Fourth Proportional to 4,218.15, 6,327.21 and 1,140.15

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Solution

The fourth proportional to 4,218.15, 6,327.21 and 1,140.15 is: 1,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.15 : 6,327.21 = 1,140.15 : x
  2. Step 2: Convert to fraction form
    4,218.15/6,327.21 = 1,140.15/x
  3. Step 3: Cross multiply
    4,218.15x = 6,327.21 × 1,140.15
  4. Step 4: Simplify right side
    4,218.15x = 7,213,968.48
  5. Step 5: Solve for x
    x = 7,213,968.48/4,218.15
  6. Step 6: Final answer
    x = 1,710.22

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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.