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Finding the Fourth Proportional to 2,955.34, 4,433.49 and 875.55

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Solution

The fourth proportional to 2,955.34, 4,433.49 and 875.55 is: 1,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.34 : 4,433.49 = 875.55 : x
  2. Step 2: Convert to fraction form
    2,955.34/4,433.49 = 875.55/x
  3. Step 3: Cross multiply
    2,955.34x = 4,433.49 × 875.55
  4. Step 4: Simplify right side
    2,955.34x = 3,881,720.00
  5. Step 5: Solve for x
    x = 3,881,720.00/2,955.34
  6. Step 6: Final answer
    x = 1,313.46

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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.