Home / 2,947.79-4,068.30-1,769.51

Finding the Fourth Proportional to 2,947.79, 4,068.30 and 1,769.51

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Solution

The fourth proportional to 2,947.79, 4,068.30 and 1,769.51 is: 2,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.79 : 4,068.30 = 1,769.51 : x
  2. Step 2: Convert to fraction form
    2,947.79/4,068.30 = 1,769.51/x
  3. Step 3: Cross multiply
    2,947.79x = 4,068.30 × 1,769.51
  4. Step 4: Simplify right side
    2,947.79x = 7,198,877.19
  5. Step 5: Solve for x
    x = 7,198,877.19/2,947.79
  6. Step 6: Final answer
    x = 2,442.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.