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Finding the Fourth Proportional to 2,625.93, 3,938.93 and 651.56

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Solution

The fourth proportional to 2,625.93, 3,938.93 and 651.56 is: 977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.93 : 3,938.93 = 651.56 : x
  2. Step 2: Convert to fraction form
    2,625.93/3,938.93 = 651.56/x
  3. Step 3: Cross multiply
    2,625.93x = 3,938.93 × 651.56
  4. Step 4: Simplify right side
    2,625.93x = 2,566,460.71
  5. Step 5: Solve for x
    x = 2,566,460.71/2,625.93
  6. Step 6: Final answer
    x = 977.35

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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.