Home / 6,511.43-8,990.24-4,156.76

Finding the Fourth Proportional to 6,511.43, 8,990.24 and 4,156.76

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Solution

The fourth proportional to 6,511.43, 8,990.24 and 4,156.76 is: 5,739.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.43 : 8,990.24 = 4,156.76 : x
  2. Step 2: Convert to fraction form
    6,511.43/8,990.24 = 4,156.76/x
  3. Step 3: Cross multiply
    6,511.43x = 8,990.24 × 4,156.76
  4. Step 4: Simplify right side
    6,511.43x = 37,370,271.71
  5. Step 5: Solve for x
    x = 37,370,271.71/6,511.43
  6. Step 6: Final answer
    x = 5,739.18

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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.