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Finding the Fourth Proportional to 5,423.51, 7,484.46 and 2,939.51

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Solution

The fourth proportional to 5,423.51, 7,484.46 and 2,939.51 is: 4,056.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.51 : 7,484.46 = 2,939.51 : x
  2. Step 2: Convert to fraction form
    5,423.51/7,484.46 = 2,939.51/x
  3. Step 3: Cross multiply
    5,423.51x = 7,484.46 × 2,939.51
  4. Step 4: Simplify right side
    5,423.51x = 22,000,630.32
  5. Step 5: Solve for x
    x = 22,000,630.32/5,423.51
  6. Step 6: Final answer
    x = 4,056.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.