Home / 7,890.43-10,888.54-4,487.81

Finding the Fourth Proportional to 7,890.43, 10,888.54 and 4,487.81

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Solution

The fourth proportional to 7,890.43, 10,888.54 and 4,487.81 is: 6,193.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.43 : 10,888.54 = 4,487.81 : x
  2. Step 2: Convert to fraction form
    7,890.43/10,888.54 = 4,487.81/x
  3. Step 3: Cross multiply
    7,890.43x = 10,888.54 × 4,487.81
  4. Step 4: Simplify right side
    7,890.43x = 48,865,698.70
  5. Step 5: Solve for x
    x = 48,865,698.70/7,890.43
  6. Step 6: Final answer
    x = 6,193.03

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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.