Home / 6,439.52-9,658.64-2,056.20

Finding the Fourth Proportional to 6,439.52, 9,658.64 and 2,056.20

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Solution

The fourth proportional to 6,439.52, 9,658.64 and 2,056.20 is: 3,084.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.52 : 9,658.64 = 2,056.20 : x
  2. Step 2: Convert to fraction form
    6,439.52/9,658.64 = 2,056.20/x
  3. Step 3: Cross multiply
    6,439.52x = 9,658.64 × 2,056.20
  4. Step 4: Simplify right side
    6,439.52x = 19,860,095.57
  5. Step 5: Solve for x
    x = 19,860,095.57/6,439.52
  6. Step 6: Final answer
    x = 3,084.10

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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.