Home / 6,263.45-8,643.65-3,430.76

Finding the Fourth Proportional to 6,263.45, 8,643.65 and 3,430.76

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Solution

The fourth proportional to 6,263.45, 8,643.65 and 3,430.76 is: 4,734.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,263.45 : 8,643.65 = 3,430.76 : x
  2. Step 2: Convert to fraction form
    6,263.45/8,643.65 = 3,430.76/x
  3. Step 3: Cross multiply
    6,263.45x = 8,643.65 × 3,430.76
  4. Step 4: Simplify right side
    6,263.45x = 29,654,228.30
  5. Step 5: Solve for x
    x = 29,654,228.30/6,263.45
  6. Step 6: Final answer
    x = 4,734.49

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.