Home / 4,651.61-6,421.43-2,661.78

Finding the Fourth Proportional to 4,651.61, 6,421.43 and 2,661.78

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Solution

The fourth proportional to 4,651.61, 6,421.43 and 2,661.78 is: 3,674.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,651.61 : 6,421.43 = 2,661.78 : x
  2. Step 2: Convert to fraction form
    4,651.61/6,421.43 = 2,661.78/x
  3. Step 3: Cross multiply
    4,651.61x = 6,421.43 × 2,661.78
  4. Step 4: Simplify right side
    4,651.61x = 17,092,420.64
  5. Step 5: Solve for x
    x = 17,092,420.64/4,651.61
  6. Step 6: Final answer
    x = 3,674.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.