Home / 1,924.48-2,655.68-1,178.20

Finding the Fourth Proportional to 1,924.48, 2,655.68 and 1,178.20

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Solution

The fourth proportional to 1,924.48, 2,655.68 and 1,178.20 is: 1,625.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.48 : 2,655.68 = 1,178.20 : x
  2. Step 2: Convert to fraction form
    1,924.48/2,655.68 = 1,178.20/x
  3. Step 3: Cross multiply
    1,924.48x = 2,655.68 × 1,178.20
  4. Step 4: Simplify right side
    1,924.48x = 3,128,922.18
  5. Step 5: Solve for x
    x = 3,128,922.18/1,924.48
  6. Step 6: Final answer
    x = 1,625.85

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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.