Home / 6,215.49-8,577.77-3,420.99

Finding the Fourth Proportional to 6,215.49, 8,577.77 and 3,420.99

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Solution

The fourth proportional to 6,215.49, 8,577.77 and 3,420.99 is: 4,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.49 : 8,577.77 = 3,420.99 : x
  2. Step 2: Convert to fraction form
    6,215.49/8,577.77 = 3,420.99/x
  3. Step 3: Cross multiply
    6,215.49x = 8,577.77 × 3,420.99
  4. Step 4: Simplify right side
    6,215.49x = 29,344,448.29
  5. Step 5: Solve for x
    x = 29,344,448.29/6,215.49
  6. Step 6: Final answer
    x = 4,721.18

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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.