Home / 7,656.06-11,485.88-2,390.88

Finding the Fourth Proportional to 7,656.06, 11,485.88 and 2,390.88

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Solution

The fourth proportional to 7,656.06, 11,485.88 and 2,390.88 is: 3,586.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656.06 : 11,485.88 = 2,390.88 : x
  2. Step 2: Convert to fraction form
    7,656.06/11,485.88 = 2,390.88/x
  3. Step 3: Cross multiply
    7,656.06x = 11,485.88 × 2,390.88
  4. Step 4: Simplify right side
    7,656.06x = 27,461,360.77
  5. Step 5: Solve for x
    x = 27,461,360.77/7,656.06
  6. Step 6: Final answer
    x = 3,586.88

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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.