Home / 1,917.52-2,863.31-1,681.51

Finding the Fourth Proportional to 1,917.52, 2,863.31 and 1,681.51

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Solution

The fourth proportional to 1,917.52, 2,863.31 and 1,681.51 is: 2,510.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.52 : 2,863.31 = 1,681.51 : x
  2. Step 2: Convert to fraction form
    1,917.52/2,863.31 = 1,681.51/x
  3. Step 3: Cross multiply
    1,917.52x = 2,863.31 × 1,681.51
  4. Step 4: Simplify right side
    1,917.52x = 4,814,684.40
  5. Step 5: Solve for x
    x = 4,814,684.40/1,917.52
  6. Step 6: Final answer
    x = 2,510.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.