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Finding the Fourth Proportional to 2,917.53, 4,374.86 and 969.07

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Solution

The fourth proportional to 2,917.53, 4,374.86 and 969.07 is: 1,453.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.53 : 4,374.86 = 969.07 : x
  2. Step 2: Convert to fraction form
    2,917.53/4,374.86 = 969.07/x
  3. Step 3: Cross multiply
    2,917.53x = 4,374.86 × 969.07
  4. Step 4: Simplify right side
    2,917.53x = 4,239,545.58
  5. Step 5: Solve for x
    x = 4,239,545.58/2,917.53
  6. Step 6: Final answer
    x = 1,453.13

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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.