Home / 6,642.74-9,166.59-3,809.51

Finding the Fourth Proportional to 6,642.74, 9,166.59 and 3,809.51

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Solution

The fourth proportional to 6,642.74, 9,166.59 and 3,809.51 is: 5,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.74 : 9,166.59 = 3,809.51 : x
  2. Step 2: Convert to fraction form
    6,642.74/9,166.59 = 3,809.51/x
  3. Step 3: Cross multiply
    6,642.74x = 9,166.59 × 3,809.51
  4. Step 4: Simplify right side
    6,642.74x = 34,920,216.27
  5. Step 5: Solve for x
    x = 34,920,216.27/6,642.74
  6. Step 6: Final answer
    x = 5,256.90

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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.