Home / 4,140.13-6,186.53-3,147.49

Finding the Fourth Proportional to 4,140.13, 6,186.53 and 3,147.49

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Solution

The fourth proportional to 4,140.13, 6,186.53 and 3,147.49 is: 4,703.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.13 : 6,186.53 = 3,147.49 : x
  2. Step 2: Convert to fraction form
    4,140.13/6,186.53 = 3,147.49/x
  3. Step 3: Cross multiply
    4,140.13x = 6,186.53 × 3,147.49
  4. Step 4: Simplify right side
    4,140.13x = 19,472,039.61
  5. Step 5: Solve for x
    x = 19,472,039.61/4,140.13
  6. Step 6: Final answer
    x = 4,703.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.