Home / 4,215.88-6,321.12-1,752.40

Finding the Fourth Proportional to 4,215.88, 6,321.12 and 1,752.40

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Solution

The fourth proportional to 4,215.88, 6,321.12 and 1,752.40 is: 2,627.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.88 : 6,321.12 = 1,752.40 : x
  2. Step 2: Convert to fraction form
    4,215.88/6,321.12 = 1,752.40/x
  3. Step 3: Cross multiply
    4,215.88x = 6,321.12 × 1,752.40
  4. Step 4: Simplify right side
    4,215.88x = 11,077,130.69
  5. Step 5: Solve for x
    x = 11,077,130.69/4,215.88
  6. Step 6: Final answer
    x = 2,627.48

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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.