Home / 1,947.08-2,918.40-1,712.36

Finding the Fourth Proportional to 1,947.08, 2,918.40 and 1,712.36

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Solution

The fourth proportional to 1,947.08, 2,918.40 and 1,712.36 is: 2,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.08 : 2,918.40 = 1,712.36 : x
  2. Step 2: Convert to fraction form
    1,947.08/2,918.40 = 1,712.36/x
  3. Step 3: Cross multiply
    1,947.08x = 2,918.40 × 1,712.36
  4. Step 4: Simplify right side
    1,947.08x = 4,997,344.13
  5. Step 5: Solve for x
    x = 4,997,344.13/1,947.08
  6. Step 6: Final answer
    x = 2,566.59

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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.