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Finding the Fourth Proportional to 1,650.95, 2,476.34 and 555.20

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Solution

The fourth proportional to 1,650.95, 2,476.34 and 555.20 is: 832.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,650.95 : 2,476.34 = 555.20 : x
  2. Step 2: Convert to fraction form
    1,650.95/2,476.34 = 555.20/x
  3. Step 3: Cross multiply
    1,650.95x = 2,476.34 × 555.20
  4. Step 4: Simplify right side
    1,650.95x = 1,374,861.19
  5. Step 5: Solve for x
    x = 1,374,861.19/1,650.95
  6. Step 6: Final answer
    x = 832.77

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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.