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Finding the Fourth Proportional to 3,503.12, 5,254.88 and 906.08

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Solution

The fourth proportional to 3,503.12, 5,254.88 and 906.08 is: 1,359.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.12 : 5,254.88 = 906.08 : x
  2. Step 2: Convert to fraction form
    3,503.12/5,254.88 = 906.08/x
  3. Step 3: Cross multiply
    3,503.12x = 5,254.88 × 906.08
  4. Step 4: Simplify right side
    3,503.12x = 4,761,341.67
  5. Step 5: Solve for x
    x = 4,761,341.67/3,503.12
  6. Step 6: Final answer
    x = 1,359.17

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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.