Home / 7,890.26-10,888.60-4,353.40

Finding the Fourth Proportional to 7,890.26, 10,888.60 and 4,353.40

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Solution

The fourth proportional to 7,890.26, 10,888.60 and 4,353.40 is: 6,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.26 : 10,888.60 = 4,353.40 : x
  2. Step 2: Convert to fraction form
    7,890.26/10,888.60 = 4,353.40/x
  3. Step 3: Cross multiply
    7,890.26x = 10,888.60 × 4,353.40
  4. Step 4: Simplify right side
    7,890.26x = 47,402,431.24
  5. Step 5: Solve for x
    x = 47,402,431.24/7,890.26
  6. Step 6: Final answer
    x = 6,007.71

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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.