Home / 7,738.13-11,607.20-2,807.76

Finding the Fourth Proportional to 7,738.13, 11,607.20 and 2,807.76

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Solution

The fourth proportional to 7,738.13, 11,607.20 and 2,807.76 is: 4,211.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.13 : 11,607.20 = 2,807.76 : x
  2. Step 2: Convert to fraction form
    7,738.13/11,607.20 = 2,807.76/x
  3. Step 3: Cross multiply
    7,738.13x = 11,607.20 × 2,807.76
  4. Step 4: Simplify right side
    7,738.13x = 32,590,271.89
  5. Step 5: Solve for x
    x = 32,590,271.89/7,738.13
  6. Step 6: Final answer
    x = 4,211.65

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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.