Home / 6,528.40-9,787.02-2,144.68

Finding the Fourth Proportional to 6,528.40, 9,787.02 and 2,144.68

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Solution

The fourth proportional to 6,528.40, 9,787.02 and 2,144.68 is: 3,215.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,528.40 : 9,787.02 = 2,144.68 : x
  2. Step 2: Convert to fraction form
    6,528.40/9,787.02 = 2,144.68/x
  3. Step 3: Cross multiply
    6,528.40x = 9,787.02 × 2,144.68
  4. Step 4: Simplify right side
    6,528.40x = 20,990,026.05
  5. Step 5: Solve for x
    x = 20,990,026.05/6,528.40
  6. Step 6: Final answer
    x = 3,215.19

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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.