Home / 7,288.06-10,931.55-2,607.70

Finding the Fourth Proportional to 7,288.06, 10,931.55 and 2,607.70

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Solution

The fourth proportional to 7,288.06, 10,931.55 and 2,607.70 is: 3,911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.06 : 10,931.55 = 2,607.70 : x
  2. Step 2: Convert to fraction form
    7,288.06/10,931.55 = 2,607.70/x
  3. Step 3: Cross multiply
    7,288.06x = 10,931.55 × 2,607.70
  4. Step 4: Simplify right side
    7,288.06x = 28,506,202.94
  5. Step 5: Solve for x
    x = 28,506,202.94/7,288.06
  6. Step 6: Final answer
    x = 3,911.36

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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.