Home / 7,870.91-11,803.61-2,322.79

Finding the Fourth Proportional to 7,870.91, 11,803.61 and 2,322.79

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Solution

The fourth proportional to 7,870.91, 11,803.61 and 2,322.79 is: 3,483.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.91 : 11,803.61 = 2,322.79 : x
  2. Step 2: Convert to fraction form
    7,870.91/11,803.61 = 2,322.79/x
  3. Step 3: Cross multiply
    7,870.91x = 11,803.61 × 2,322.79
  4. Step 4: Simplify right side
    7,870.91x = 27,417,283.57
  5. Step 5: Solve for x
    x = 27,417,283.57/7,870.91
  6. Step 6: Final answer
    x = 3,483.37

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1.5x scale

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.