Home / 7,890.66-10,888.75-4,531.11

Finding the Fourth Proportional to 7,890.66, 10,888.75 and 4,531.11

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Solution

The fourth proportional to 7,890.66, 10,888.75 and 4,531.11 is: 6,252.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.66 : 10,888.75 = 4,531.11 : x
  2. Step 2: Convert to fraction form
    7,890.66/10,888.75 = 4,531.11/x
  3. Step 3: Cross multiply
    7,890.66x = 10,888.75 × 4,531.11
  4. Step 4: Simplify right side
    7,890.66x = 49,338,170.51
  5. Step 5: Solve for x
    x = 49,338,170.51/7,890.66
  6. Step 6: Final answer
    x = 6,252.73

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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.