Home / 6,290.76-8,683.29-4,056.78

Finding the Fourth Proportional to 6,290.76, 8,683.29 and 4,056.78

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Solution

The fourth proportional to 6,290.76, 8,683.29 and 4,056.78 is: 5,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.76 : 8,683.29 = 4,056.78 : x
  2. Step 2: Convert to fraction form
    6,290.76/8,683.29 = 4,056.78/x
  3. Step 3: Cross multiply
    6,290.76x = 8,683.29 × 4,056.78
  4. Step 4: Simplify right side
    6,290.76x = 35,226,197.21
  5. Step 5: Solve for x
    x = 35,226,197.21/6,290.76
  6. Step 6: Final answer
    x = 5,599.67

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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.