Home / 1,764.84-2,642.40-1,330.68

Finding the Fourth Proportional to 1,764.84, 2,642.40 and 1,330.68

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Solution

The fourth proportional to 1,764.84, 2,642.40 and 1,330.68 is: 1,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.84 : 2,642.40 = 1,330.68 : x
  2. Step 2: Convert to fraction form
    1,764.84/2,642.40 = 1,330.68/x
  3. Step 3: Cross multiply
    1,764.84x = 2,642.40 × 1,330.68
  4. Step 4: Simplify right side
    1,764.84x = 3,516,188.83
  5. Step 5: Solve for x
    x = 3,516,188.83/1,764.84
  6. Step 6: Final answer
    x = 1,992.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.