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Finding the Fourth Proportional to 4,684.60, 7,026.90 and 4,328.20

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Solution

The fourth proportional to 4,684.60, 7,026.90 and 4,328.20 is: 6,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,684.60 : 7,026.90 = 4,328.20 : x
  2. Step 2: Convert to fraction form
    4,684.60/7,026.90 = 4,328.20/x
  3. Step 3: Cross multiply
    4,684.60x = 7,026.90 × 4,328.20
  4. Step 4: Simplify right side
    4,684.60x = 30,413,828.58
  5. Step 5: Solve for x
    x = 30,413,828.58/4,684.60
  6. Step 6: Final answer
    x = 6,492.30

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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.