Home / 1,635.60-2,256.95-927.39

Finding the Fourth Proportional to 1,635.60, 2,256.95 and 927.39

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Solution

The fourth proportional to 1,635.60, 2,256.95 and 927.39 is: 1,279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.60 : 2,256.95 = 927.39 : x
  2. Step 2: Convert to fraction form
    1,635.60/2,256.95 = 927.39/x
  3. Step 3: Cross multiply
    1,635.60x = 2,256.95 × 927.39
  4. Step 4: Simplify right side
    1,635.60x = 2,093,068.22
  5. Step 5: Solve for x
    x = 2,093,068.22/1,635.60
  6. Step 6: Final answer
    x = 1,279.69

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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.