Home / 1,056.06-1,584.90-398.52

Finding the Fourth Proportional to 1,056.06, 1,584.90 and 398.52

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Solution

The fourth proportional to 1,056.06, 1,584.90 and 398.52 is: 598.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.06 : 1,584.90 = 398.52 : x
  2. Step 2: Convert to fraction form
    1,056.06/1,584.90 = 398.52/x
  3. Step 3: Cross multiply
    1,056.06x = 1,584.90 × 398.52
  4. Step 4: Simplify right side
    1,056.06x = 631,614.35
  5. Step 5: Solve for x
    x = 631,614.35/1,056.06
  6. Step 6: Final answer
    x = 598.09

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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.