Home / 6,417.69-8,856.30-3,585.11

Finding the Fourth Proportional to 6,417.69, 8,856.30 and 3,585.11

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Solution

The fourth proportional to 6,417.69, 8,856.30 and 3,585.11 is: 4,947.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,417.69 : 8,856.30 = 3,585.11 : x
  2. Step 2: Convert to fraction form
    6,417.69/8,856.30 = 3,585.11/x
  3. Step 3: Cross multiply
    6,417.69x = 8,856.30 × 3,585.11
  4. Step 4: Simplify right side
    6,417.69x = 31,750,778.86
  5. Step 5: Solve for x
    x = 31,750,778.86/6,417.69
  6. Step 6: Final answer
    x = 4,947.39

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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.