Home / 7,870.32-11,803.05-3,491.46

Finding the Fourth Proportional to 7,870.32, 11,803.05 and 3,491.46

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Solution

The fourth proportional to 7,870.32, 11,803.05 and 3,491.46 is: 5,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.32 : 11,803.05 = 3,491.46 : x
  2. Step 2: Convert to fraction form
    7,870.32/11,803.05 = 3,491.46/x
  3. Step 3: Cross multiply
    7,870.32x = 11,803.05 × 3,491.46
  4. Step 4: Simplify right side
    7,870.32x = 41,209,876.95
  5. Step 5: Solve for x
    x = 41,209,876.95/7,870.32
  6. Step 6: Final answer
    x = 5,236.11

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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.