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Finding the Fourth Proportional to 7,484.79, 11,223.93 and 2,146.79

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Solution

The fourth proportional to 7,484.79, 11,223.93 and 2,146.79 is: 3,219.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.79 : 11,223.93 = 2,146.79 : x
  2. Step 2: Convert to fraction form
    7,484.79/11,223.93 = 2,146.79/x
  3. Step 3: Cross multiply
    7,484.79x = 11,223.93 × 2,146.79
  4. Step 4: Simplify right side
    7,484.79x = 24,095,448.74
  5. Step 5: Solve for x
    x = 24,095,448.74/7,484.79
  6. Step 6: Final answer
    x = 3,219.26

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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.