Home / 4,430.97-6,645.45-1,311.21

Finding the Fourth Proportional to 4,430.97, 6,645.45 and 1,311.21

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Solution

The fourth proportional to 4,430.97, 6,645.45 and 1,311.21 is: 1,966.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.97 : 6,645.45 = 1,311.21 : x
  2. Step 2: Convert to fraction form
    4,430.97/6,645.45 = 1,311.21/x
  3. Step 3: Cross multiply
    4,430.97x = 6,645.45 × 1,311.21
  4. Step 4: Simplify right side
    4,430.97x = 8,713,580.49
  5. Step 5: Solve for x
    x = 8,713,580.49/4,430.97
  6. Step 6: Final answer
    x = 1,966.52

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Half scale
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Double scale
Find fourth proportional to 4,431.97, 6,646.95 and 1,312.21
Similar ratio
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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.