Home / 1,763.88-2,436.54-1,316.76

Finding the Fourth Proportional to 1,763.88, 2,436.54 and 1,316.76

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Solution

The fourth proportional to 1,763.88, 2,436.54 and 1,316.76 is: 1,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763.88 : 2,436.54 = 1,316.76 : x
  2. Step 2: Convert to fraction form
    1,763.88/2,436.54 = 1,316.76/x
  3. Step 3: Cross multiply
    1,763.88x = 2,436.54 × 1,316.76
  4. Step 4: Simplify right side
    1,763.88x = 3,208,338.41
  5. Step 5: Solve for x
    x = 3,208,338.41/1,763.88
  6. Step 6: Final answer
    x = 1,818.91

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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.