Home / 5,081.12-7,622.40-2,307.76

Finding the Fourth Proportional to 5,081.12, 7,622.40 and 2,307.76

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Solution

The fourth proportional to 5,081.12, 7,622.40 and 2,307.76 is: 3,461.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.12 : 7,622.40 = 2,307.76 : x
  2. Step 2: Convert to fraction form
    5,081.12/7,622.40 = 2,307.76/x
  3. Step 3: Cross multiply
    5,081.12x = 7,622.40 × 2,307.76
  4. Step 4: Simplify right side
    5,081.12x = 17,590,669.82
  5. Step 5: Solve for x
    x = 17,590,669.82/5,081.12
  6. Step 6: Final answer
    x = 3,461.97

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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.