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Finding the Fourth Proportional to 2,918.34, 4,393.98 and 2,573.82

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Solution

The fourth proportional to 2,918.34, 4,393.98 and 2,573.82 is: 3,875.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.34 : 4,393.98 = 2,573.82 : x
  2. Step 2: Convert to fraction form
    2,918.34/4,393.98 = 2,573.82/x
  3. Step 3: Cross multiply
    2,918.34x = 4,393.98 × 2,573.82
  4. Step 4: Simplify right side
    2,918.34x = 11,309,313.60
  5. Step 5: Solve for x
    x = 11,309,313.60/2,918.34
  6. Step 6: Final answer
    x = 3,875.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.