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Finding the Fourth Proportional to 1,558.59, 2,335.86 and 633.06

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Solution

The fourth proportional to 1,558.59, 2,335.86 and 633.06 is: 948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.59 : 2,335.86 = 633.06 : x
  2. Step 2: Convert to fraction form
    1,558.59/2,335.86 = 633.06/x
  3. Step 3: Cross multiply
    1,558.59x = 2,335.86 × 633.06
  4. Step 4: Simplify right side
    1,558.59x = 1,478,746.95
  5. Step 5: Solve for x
    x = 1,478,746.95/1,558.59
  6. Step 6: Final answer
    x = 948.77

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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.