Home / 1,590.12-2,381.52-1,103.52

Finding the Fourth Proportional to 1,590.12, 2,381.52 and 1,103.52

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Solution

The fourth proportional to 1,590.12, 2,381.52 and 1,103.52 is: 1,652.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.12 : 2,381.52 = 1,103.52 : x
  2. Step 2: Convert to fraction form
    1,590.12/2,381.52 = 1,103.52/x
  3. Step 3: Cross multiply
    1,590.12x = 2,381.52 × 1,103.52
  4. Step 4: Simplify right side
    1,590.12x = 2,628,054.95
  5. Step 5: Solve for x
    x = 2,628,054.95/1,590.12
  6. Step 6: Final answer
    x = 1,652.74

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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.