Home / 1,625.37-2,242.88-917.39

Finding the Fourth Proportional to 1,625.37, 2,242.88 and 917.39

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Solution

The fourth proportional to 1,625.37, 2,242.88 and 917.39 is: 1,265.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.37 : 2,242.88 = 917.39 : x
  2. Step 2: Convert to fraction form
    1,625.37/2,242.88 = 917.39/x
  3. Step 3: Cross multiply
    1,625.37x = 2,242.88 × 917.39
  4. Step 4: Simplify right side
    1,625.37x = 2,057,595.68
  5. Step 5: Solve for x
    x = 2,057,595.68/1,625.37
  6. Step 6: Final answer
    x = 1,265.92

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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.