Home / 6,215-8,577.24-3,421.04

Finding the Fourth Proportional to 6,215, 8,577.24 and 3,421.04

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Solution

The fourth proportional to 6,215, 8,577.24 and 3,421.04 is: 4,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215 : 8,577.24 = 3,421.04 : x
  2. Step 2: Convert to fraction form
    6,215/8,577.24 = 3,421.04/x
  3. Step 3: Cross multiply
    6,215x = 8,577.24 × 3,421.04
  4. Step 4: Simplify right side
    6,215x = 29,343,081.13
  5. Step 5: Solve for x
    x = 29,343,081.13/6,215
  6. Step 6: Final answer
    x = 4,721.33

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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.