Home / 1,085.21-1,497.58-587.84

Finding the Fourth Proportional to 1,085.21, 1,497.58 and 587.84

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Solution

The fourth proportional to 1,085.21, 1,497.58 and 587.84 is: 811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085.21 : 1,497.58 = 587.84 : x
  2. Step 2: Convert to fraction form
    1,085.21/1,497.58 = 587.84/x
  3. Step 3: Cross multiply
    1,085.21x = 1,497.58 × 587.84
  4. Step 4: Simplify right side
    1,085.21x = 880,337.43
  5. Step 5: Solve for x
    x = 880,337.43/1,085.21
  6. Step 6: Final answer
    x = 811.21

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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.