Home / 6,511.21-8,985.57-3,527.15

Finding the Fourth Proportional to 6,511.21, 8,985.57 and 3,527.15

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Solution

The fourth proportional to 6,511.21, 8,985.57 and 3,527.15 is: 4,867.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.21 : 8,985.57 = 3,527.15 : x
  2. Step 2: Convert to fraction form
    6,511.21/8,985.57 = 3,527.15/x
  3. Step 3: Cross multiply
    6,511.21x = 8,985.57 × 3,527.15
  4. Step 4: Simplify right side
    6,511.21x = 31,693,395.07
  5. Step 5: Solve for x
    x = 31,693,395.07/6,511.21
  6. Step 6: Final answer
    x = 4,867.51

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Double scale
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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.