Home / 6,378.47-9,570.16-2,218.91

Finding the Fourth Proportional to 6,378.47, 9,570.16 and 2,218.91

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Solution

The fourth proportional to 6,378.47, 9,570.16 and 2,218.91 is: 3,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.47 : 9,570.16 = 2,218.91 : x
  2. Step 2: Convert to fraction form
    6,378.47/9,570.16 = 2,218.91/x
  3. Step 3: Cross multiply
    6,378.47x = 9,570.16 × 2,218.91
  4. Step 4: Simplify right side
    6,378.47x = 21,235,270.33
  5. Step 5: Solve for x
    x = 21,235,270.33/6,378.47
  6. Step 6: Final answer
    x = 3,329.21

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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.