Home / 1,456.80-2,009.20-1,335.32

Finding the Fourth Proportional to 1,456.80, 2,009.20 and 1,335.32

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Solution

The fourth proportional to 1,456.80, 2,009.20 and 1,335.32 is: 1,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.80 : 2,009.20 = 1,335.32 : x
  2. Step 2: Convert to fraction form
    1,456.80/2,009.20 = 1,335.32/x
  3. Step 3: Cross multiply
    1,456.80x = 2,009.20 × 1,335.32
  4. Step 4: Simplify right side
    1,456.80x = 2,682,924.94
  5. Step 5: Solve for x
    x = 2,682,924.94/1,456.80
  6. Step 6: Final answer
    x = 1,841.66

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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.