Home / 7,079.81-10,625.18-2,921.77

Finding the Fourth Proportional to 7,079.81, 10,625.18 and 2,921.77

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Solution

The fourth proportional to 7,079.81, 10,625.18 and 2,921.77 is: 4,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.81 : 10,625.18 = 2,921.77 : x
  2. Step 2: Convert to fraction form
    7,079.81/10,625.18 = 2,921.77/x
  3. Step 3: Cross multiply
    7,079.81x = 10,625.18 × 2,921.77
  4. Step 4: Simplify right side
    7,079.81x = 31,044,330.84
  5. Step 5: Solve for x
    x = 31,044,330.84/7,079.81
  6. Step 6: Final answer
    x = 4,384.91

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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.