Home / 1,624.48-2,240.40-1,329.76

Finding the Fourth Proportional to 1,624.48, 2,240.40 and 1,329.76

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Solution

The fourth proportional to 1,624.48, 2,240.40 and 1,329.76 is: 1,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.48 : 2,240.40 = 1,329.76 : x
  2. Step 2: Convert to fraction form
    1,624.48/2,240.40 = 1,329.76/x
  3. Step 3: Cross multiply
    1,624.48x = 2,240.40 × 1,329.76
  4. Step 4: Simplify right side
    1,624.48x = 2,979,194.30
  5. Step 5: Solve for x
    x = 2,979,194.30/1,624.48
  6. Step 6: Final answer
    x = 1,833.94

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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.