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Finding the Fourth Proportional to 1,625.57, 2,242.74 and 1,036.45

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Solution

The fourth proportional to 1,625.57, 2,242.74 and 1,036.45 is: 1,429.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.57 : 2,242.74 = 1,036.45 : x
  2. Step 2: Convert to fraction form
    1,625.57/2,242.74 = 1,036.45/x
  3. Step 3: Cross multiply
    1,625.57x = 2,242.74 × 1,036.45
  4. Step 4: Simplify right side
    1,625.57x = 2,324,476.12
  5. Step 5: Solve for x
    x = 2,324,476.12/1,625.57
  6. Step 6: Final answer
    x = 1,429.95

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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.