Home / 1,779.32-2,455.17-1,635.95

Finding the Fourth Proportional to 1,779.32, 2,455.17 and 1,635.95

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Solution

The fourth proportional to 1,779.32, 2,455.17 and 1,635.95 is: 2,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.32 : 2,455.17 = 1,635.95 : x
  2. Step 2: Convert to fraction form
    1,779.32/2,455.17 = 1,635.95/x
  3. Step 3: Cross multiply
    1,779.32x = 2,455.17 × 1,635.95
  4. Step 4: Simplify right side
    1,779.32x = 4,016,535.36
  5. Step 5: Solve for x
    x = 4,016,535.36/1,779.32
  6. Step 6: Final answer
    x = 2,257.34

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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.