Home / 7,890.30-10,888.38-4,353.66

Finding the Fourth Proportional to 7,890.30, 10,888.38 and 4,353.66

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Solution

The fourth proportional to 7,890.30, 10,888.38 and 4,353.66 is: 6,007.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.30 : 10,888.38 = 4,353.66 : x
  2. Step 2: Convert to fraction form
    7,890.30/10,888.38 = 4,353.66/x
  3. Step 3: Cross multiply
    7,890.30x = 10,888.38 × 4,353.66
  4. Step 4: Simplify right side
    7,890.30x = 47,404,304.47
  5. Step 5: Solve for x
    x = 47,404,304.47/7,890.30
  6. Step 6: Final answer
    x = 6,007.92

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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.