Home / 1,511.54-2,253.22-1,429.46

Finding the Fourth Proportional to 1,511.54, 2,253.22 and 1,429.46

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Solution

The fourth proportional to 1,511.54, 2,253.22 and 1,429.46 is: 2,130.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.54 : 2,253.22 = 1,429.46 : x
  2. Step 2: Convert to fraction form
    1,511.54/2,253.22 = 1,429.46/x
  3. Step 3: Cross multiply
    1,511.54x = 2,253.22 × 1,429.46
  4. Step 4: Simplify right side
    1,511.54x = 3,220,887.86
  5. Step 5: Solve for x
    x = 3,220,887.86/1,511.54
  6. Step 6: Final answer
    x = 2,130.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.