Home / 4,280.69-6,423.44-1,685.45

Finding the Fourth Proportional to 4,280.69, 6,423.44 and 1,685.45

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Solution

The fourth proportional to 4,280.69, 6,423.44 and 1,685.45 is: 2,529.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.69 : 6,423.44 = 1,685.45 : x
  2. Step 2: Convert to fraction form
    4,280.69/6,423.44 = 1,685.45/x
  3. Step 3: Cross multiply
    4,280.69x = 6,423.44 × 1,685.45
  4. Step 4: Simplify right side
    4,280.69x = 10,826,346.40
  5. Step 5: Solve for x
    x = 10,826,346.40/4,280.69
  6. Step 6: Final answer
    x = 2,529.12

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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.