Home / 6,430.50-9,646.14-1,813.86

Finding the Fourth Proportional to 6,430.50, 9,646.14 and 1,813.86

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Solution

The fourth proportional to 6,430.50, 9,646.14 and 1,813.86 is: 2,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.50 : 9,646.14 = 1,813.86 : x
  2. Step 2: Convert to fraction form
    6,430.50/9,646.14 = 1,813.86/x
  3. Step 3: Cross multiply
    6,430.50x = 9,646.14 × 1,813.86
  4. Step 4: Simplify right side
    6,430.50x = 17,496,747.50
  5. Step 5: Solve for x
    x = 17,496,747.50/6,430.50
  6. Step 6: Final answer
    x = 2,720.90

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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.