Home / 1,088.21-1,631.51-655.27

Finding the Fourth Proportional to 1,088.21, 1,631.51 and 655.27

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Solution

The fourth proportional to 1,088.21, 1,631.51 and 655.27 is: 982.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.21 : 1,631.51 = 655.27 : x
  2. Step 2: Convert to fraction form
    1,088.21/1,631.51 = 655.27/x
  3. Step 3: Cross multiply
    1,088.21x = 1,631.51 × 655.27
  4. Step 4: Simplify right side
    1,088.21x = 1,069,068.12
  5. Step 5: Solve for x
    x = 1,069,068.12/1,088.21
  6. Step 6: Final answer
    x = 982.41

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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.