Home / 4,215.36-6,312-2,750.40

Finding the Fourth Proportional to 4,215.36, 6,312 and 2,750.40

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Solution

The fourth proportional to 4,215.36, 6,312 and 2,750.40 is: 4,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.36 : 6,312 = 2,750.40 : x
  2. Step 2: Convert to fraction form
    4,215.36/6,312 = 2,750.40/x
  3. Step 3: Cross multiply
    4,215.36x = 6,312 × 2,750.40
  4. Step 4: Simplify right side
    4,215.36x = 17,360,524.80
  5. Step 5: Solve for x
    x = 17,360,524.80/4,215.36
  6. Step 6: Final answer
    x = 4,118.40

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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.