Home / 4,286.24-6,430.08-1,688.80

Finding the Fourth Proportional to 4,286.24, 6,430.08 and 1,688.80

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Solution

The fourth proportional to 4,286.24, 6,430.08 and 1,688.80 is: 2,533.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.24 : 6,430.08 = 1,688.80 : x
  2. Step 2: Convert to fraction form
    4,286.24/6,430.08 = 1,688.80/x
  3. Step 3: Cross multiply
    4,286.24x = 6,430.08 × 1,688.80
  4. Step 4: Simplify right side
    4,286.24x = 10,859,119.10
  5. Step 5: Solve for x
    x = 10,859,119.10/4,286.24
  6. Step 6: Final answer
    x = 2,533.48

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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.