Home / 7,484.08-11,231.70-2,808.40

Finding the Fourth Proportional to 7,484.08, 11,231.70 and 2,808.40

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Solution

The fourth proportional to 7,484.08, 11,231.70 and 2,808.40 is: 4,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.08 : 11,231.70 = 2,808.40 : x
  2. Step 2: Convert to fraction form
    7,484.08/11,231.70 = 2,808.40/x
  3. Step 3: Cross multiply
    7,484.08x = 11,231.70 × 2,808.40
  4. Step 4: Simplify right side
    7,484.08x = 31,543,106.28
  5. Step 5: Solve for x
    x = 31,543,106.28/7,484.08
  6. Step 6: Final answer
    x = 4,214.69

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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.