Home / 1,512.68-2,087.71-1,303.70

Finding the Fourth Proportional to 1,512.68, 2,087.71 and 1,303.70

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Solution

The fourth proportional to 1,512.68, 2,087.71 and 1,303.70 is: 1,799.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.68 : 2,087.71 = 1,303.70 : x
  2. Step 2: Convert to fraction form
    1,512.68/2,087.71 = 1,303.70/x
  3. Step 3: Cross multiply
    1,512.68x = 2,087.71 × 1,303.70
  4. Step 4: Simplify right side
    1,512.68x = 2,721,733.83
  5. Step 5: Solve for x
    x = 2,721,733.83/1,512.68
  6. Step 6: Final answer
    x = 1,799.29

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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.