Home / 1,087.19-1,500.36-615.03

Finding the Fourth Proportional to 1,087.19, 1,500.36 and 615.03

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Solution

The fourth proportional to 1,087.19, 1,500.36 and 615.03 is: 848.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087.19 : 1,500.36 = 615.03 : x
  2. Step 2: Convert to fraction form
    1,087.19/1,500.36 = 615.03/x
  3. Step 3: Cross multiply
    1,087.19x = 1,500.36 × 615.03
  4. Step 4: Simplify right side
    1,087.19x = 922,766.41
  5. Step 5: Solve for x
    x = 922,766.41/1,087.19
  6. Step 6: Final answer
    x = 848.77

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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.