Home / 2,590.81-3,574.24-1,805.31

Finding the Fourth Proportional to 2,590.81, 3,574.24 and 1,805.31

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Solution

The fourth proportional to 2,590.81, 3,574.24 and 1,805.31 is: 2,490.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.81 : 3,574.24 = 1,805.31 : x
  2. Step 2: Convert to fraction form
    2,590.81/3,574.24 = 1,805.31/x
  3. Step 3: Cross multiply
    2,590.81x = 3,574.24 × 1,805.31
  4. Step 4: Simplify right side
    2,590.81x = 6,452,584.32
  5. Step 5: Solve for x
    x = 6,452,584.32/2,590.81
  6. Step 6: Final answer
    x = 2,490.57

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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.