Home / 7,890.39-10,888.89-4,353.75

Finding the Fourth Proportional to 7,890.39, 10,888.89 and 4,353.75

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Solution

The fourth proportional to 7,890.39, 10,888.89 and 4,353.75 is: 6,008.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.39 : 10,888.89 = 4,353.75 : x
  2. Step 2: Convert to fraction form
    7,890.39/10,888.89 = 4,353.75/x
  3. Step 3: Cross multiply
    7,890.39x = 10,888.89 × 4,353.75
  4. Step 4: Simplify right side
    7,890.39x = 47,407,504.84
  5. Step 5: Solve for x
    x = 47,407,504.84/7,890.39
  6. Step 6: Final answer
    x = 6,008.26

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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.