Home / 1,514.08-2,271.12-418.40

Finding the Fourth Proportional to 1,514.08, 2,271.12 and 418.40

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Solution

The fourth proportional to 1,514.08, 2,271.12 and 418.40 is: 627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,514.08 : 2,271.12 = 418.40 : x
  2. Step 2: Convert to fraction form
    1,514.08/2,271.12 = 418.40/x
  3. Step 3: Cross multiply
    1,514.08x = 2,271.12 × 418.40
  4. Step 4: Simplify right side
    1,514.08x = 950,236.61
  5. Step 5: Solve for x
    x = 950,236.61/1,514.08
  6. Step 6: Final answer
    x = 627.60

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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.