Home / 1,531.89-2,298.75-558.06

Finding the Fourth Proportional to 1,531.89, 2,298.75 and 558.06

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Solution

The fourth proportional to 1,531.89, 2,298.75 and 558.06 is: 837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.89 : 2,298.75 = 558.06 : x
  2. Step 2: Convert to fraction form
    1,531.89/2,298.75 = 558.06/x
  3. Step 3: Cross multiply
    1,531.89x = 2,298.75 × 558.06
  4. Step 4: Simplify right side
    1,531.89x = 1,282,840.43
  5. Step 5: Solve for x
    x = 1,282,840.43/1,531.89
  6. Step 6: Final answer
    x = 837.42

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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.