Home / 7,888.20-10,885.21-4,351.40

Finding the Fourth Proportional to 7,888.20, 10,885.21 and 4,351.40

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Solution

The fourth proportional to 7,888.20, 10,885.21 and 4,351.40 is: 6,004.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.20 : 10,885.21 = 4,351.40 : x
  2. Step 2: Convert to fraction form
    7,888.20/10,885.21 = 4,351.40/x
  3. Step 3: Cross multiply
    7,888.20x = 10,885.21 × 4,351.40
  4. Step 4: Simplify right side
    7,888.20x = 47,365,902.79
  5. Step 5: Solve for x
    x = 47,365,902.79/7,888.20
  6. Step 6: Final answer
    x = 6,004.65

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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.