Home / 1,672.33-2,307.78-926.32

Finding the Fourth Proportional to 1,672.33, 2,307.78 and 926.32

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Solution

The fourth proportional to 1,672.33, 2,307.78 and 926.32 is: 1,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.33 : 2,307.78 = 926.32 : x
  2. Step 2: Convert to fraction form
    1,672.33/2,307.78 = 926.32/x
  3. Step 3: Cross multiply
    1,672.33x = 2,307.78 × 926.32
  4. Step 4: Simplify right side
    1,672.33x = 2,137,742.77
  5. Step 5: Solve for x
    x = 2,137,742.77/1,672.33
  6. Step 6: Final answer
    x = 1,278.30

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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.