Home / 1,918.32-2,646.36-1,254.92

Finding the Fourth Proportional to 1,918.32, 2,646.36 and 1,254.92

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Solution

The fourth proportional to 1,918.32, 2,646.36 and 1,254.92 is: 1,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918.32 : 2,646.36 = 1,254.92 : x
  2. Step 2: Convert to fraction form
    1,918.32/2,646.36 = 1,254.92/x
  3. Step 3: Cross multiply
    1,918.32x = 2,646.36 × 1,254.92
  4. Step 4: Simplify right side
    1,918.32x = 3,320,970.09
  5. Step 5: Solve for x
    x = 3,320,970.09/1,918.32
  6. Step 6: Final answer
    x = 1,731.19

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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.