Home / 4,202.08-6,302.84-1,280.40

Finding the Fourth Proportional to 4,202.08, 6,302.84 and 1,280.40

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Solution

The fourth proportional to 4,202.08, 6,302.84 and 1,280.40 is: 1,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,202.08 : 6,302.84 = 1,280.40 : x
  2. Step 2: Convert to fraction form
    4,202.08/6,302.84 = 1,280.40/x
  3. Step 3: Cross multiply
    4,202.08x = 6,302.84 × 1,280.40
  4. Step 4: Simplify right side
    4,202.08x = 8,070,156.34
  5. Step 5: Solve for x
    x = 8,070,156.34/4,202.08
  6. Step 6: Final answer
    x = 1,920.51

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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.