Home / 4,642.65-6,406.86-2,755.15

Finding the Fourth Proportional to 4,642.65, 6,406.86 and 2,755.15

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Solution

The fourth proportional to 4,642.65, 6,406.86 and 2,755.15 is: 3,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,642.65 : 6,406.86 = 2,755.15 : x
  2. Step 2: Convert to fraction form
    4,642.65/6,406.86 = 2,755.15/x
  3. Step 3: Cross multiply
    4,642.65x = 6,406.86 × 2,755.15
  4. Step 4: Simplify right side
    4,642.65x = 17,651,854.64
  5. Step 5: Solve for x
    x = 17,651,854.64/4,642.65
  6. Step 6: Final answer
    x = 3,802.11

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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.