Home / 1,695.29-2,340.26-1,275.77

Finding the Fourth Proportional to 1,695.29, 2,340.26 and 1,275.77

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Solution

The fourth proportional to 1,695.29, 2,340.26 and 1,275.77 is: 1,761.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.29 : 2,340.26 = 1,275.77 : x
  2. Step 2: Convert to fraction form
    1,695.29/2,340.26 = 1,275.77/x
  3. Step 3: Cross multiply
    1,695.29x = 2,340.26 × 1,275.77
  4. Step 4: Simplify right side
    1,695.29x = 2,985,633.50
  5. Step 5: Solve for x
    x = 2,985,633.50/1,695.29
  6. Step 6: Final answer
    x = 1,761.13

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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.