Home / 2,654.87-3,663.80-1,535.70

Finding the Fourth Proportional to 2,654.87, 3,663.80 and 1,535.70

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Solution

The fourth proportional to 2,654.87, 3,663.80 and 1,535.70 is: 2,119.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.87 : 3,663.80 = 1,535.70 : x
  2. Step 2: Convert to fraction form
    2,654.87/3,663.80 = 1,535.70/x
  3. Step 3: Cross multiply
    2,654.87x = 3,663.80 × 1,535.70
  4. Step 4: Simplify right side
    2,654.87x = 5,626,489.98
  5. Step 5: Solve for x
    x = 5,626,489.98/2,654.87
  6. Step 6: Final answer
    x = 2,119.31

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1.5x scale

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.