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Finding the Fourth Proportional to 2,585.01, 3,877.51 and 637.21

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Solution

The fourth proportional to 2,585.01, 3,877.51 and 637.21 is: 955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.01 : 3,877.51 = 637.21 : x
  2. Step 2: Convert to fraction form
    2,585.01/3,877.51 = 637.21/x
  3. Step 3: Cross multiply
    2,585.01x = 3,877.51 × 637.21
  4. Step 4: Simplify right side
    2,585.01x = 2,470,788.15
  5. Step 5: Solve for x
    x = 2,470,788.15/2,585.01
  6. Step 6: Final answer
    x = 955.82

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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.