Home / 5,511.40-8,264.90-1,812.60

Finding the Fourth Proportional to 5,511.40, 8,264.90 and 1,812.60

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Solution

The fourth proportional to 5,511.40, 8,264.90 and 1,812.60 is: 2,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.40 : 8,264.90 = 1,812.60 : x
  2. Step 2: Convert to fraction form
    5,511.40/8,264.90 = 1,812.60/x
  3. Step 3: Cross multiply
    5,511.40x = 8,264.90 × 1,812.60
  4. Step 4: Simplify right side
    5,511.40x = 14,980,957.74
  5. Step 5: Solve for x
    x = 14,980,957.74/5,511.40
  6. Step 6: Final answer
    x = 2,718.18

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1.5x scale

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.