Home / 1,636.67-2,257.34-1,140.08

Finding the Fourth Proportional to 1,636.67, 2,257.34 and 1,140.08

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Solution

The fourth proportional to 1,636.67, 2,257.34 and 1,140.08 is: 1,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.67 : 2,257.34 = 1,140.08 : x
  2. Step 2: Convert to fraction form
    1,636.67/2,257.34 = 1,140.08/x
  3. Step 3: Cross multiply
    1,636.67x = 2,257.34 × 1,140.08
  4. Step 4: Simplify right side
    1,636.67x = 2,573,531.20
  5. Step 5: Solve for x
    x = 2,573,531.20/1,636.67
  6. Step 6: Final answer
    x = 1,572.42

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Half scale
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Double scale
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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.