Home / 1,535.51-2,120.97-1,335.98

Finding the Fourth Proportional to 1,535.51, 2,120.97 and 1,335.98

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Solution

The fourth proportional to 1,535.51, 2,120.97 and 1,335.98 is: 1,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.51 : 2,120.97 = 1,335.98 : x
  2. Step 2: Convert to fraction form
    1,535.51/2,120.97 = 1,335.98/x
  3. Step 3: Cross multiply
    1,535.51x = 2,120.97 × 1,335.98
  4. Step 4: Simplify right side
    1,535.51x = 2,833,562.90
  5. Step 5: Solve for x
    x = 2,833,562.90/1,535.51
  6. Step 6: Final answer
    x = 1,845.36

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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.