Home / 1,590.36-2,193.51-1,520.56

Finding the Fourth Proportional to 1,590.36, 2,193.51 and 1,520.56

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Solution

The fourth proportional to 1,590.36, 2,193.51 and 1,520.56 is: 2,097.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.36 : 2,193.51 = 1,520.56 : x
  2. Step 2: Convert to fraction form
    1,590.36/2,193.51 = 1,520.56/x
  3. Step 3: Cross multiply
    1,590.36x = 2,193.51 × 1,520.56
  4. Step 4: Simplify right side
    1,590.36x = 3,335,363.57
  5. Step 5: Solve for x
    x = 3,335,363.57/1,590.36
  6. Step 6: Final answer
    x = 2,097.24

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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.