Home / 6,870.40-10,302.36-3,582.88

Finding the Fourth Proportional to 6,870.40, 10,302.36 and 3,582.88

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Solution

The fourth proportional to 6,870.40, 10,302.36 and 3,582.88 is: 5,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.40 : 10,302.36 = 3,582.88 : x
  2. Step 2: Convert to fraction form
    6,870.40/10,302.36 = 3,582.88/x
  3. Step 3: Cross multiply
    6,870.40x = 10,302.36 × 3,582.88
  4. Step 4: Simplify right side
    6,870.40x = 36,912,119.60
  5. Step 5: Solve for x
    x = 36,912,119.60/6,870.40
  6. Step 6: Final answer
    x = 5,372.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.