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Finding the Fourth Proportional to 1,947.15, 2,919.24 and 973.94

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Solution

The fourth proportional to 1,947.15, 2,919.24 and 973.94 is: 1,460.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.15 : 2,919.24 = 973.94 : x
  2. Step 2: Convert to fraction form
    1,947.15/2,919.24 = 973.94/x
  3. Step 3: Cross multiply
    1,947.15x = 2,919.24 × 973.94
  4. Step 4: Simplify right side
    1,947.15x = 2,843,150.01
  5. Step 5: Solve for x
    x = 2,843,150.01/1,947.15
  6. Step 6: Final answer
    x = 1,460.16

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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.