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Finding the Fourth Proportional to 2,582.18, 3,873.28 and 634.40

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Solution

The fourth proportional to 2,582.18, 3,873.28 and 634.40 is: 951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,582.18 : 3,873.28 = 634.40 : x
  2. Step 2: Convert to fraction form
    2,582.18/3,873.28 = 634.40/x
  3. Step 3: Cross multiply
    2,582.18x = 3,873.28 × 634.40
  4. Step 4: Simplify right side
    2,582.18x = 2,457,208.83
  5. Step 5: Solve for x
    x = 2,457,208.83/2,582.18
  6. Step 6: Final answer
    x = 951.60

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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.