Home / 1,088.19-1,621.04-1,020.96

Finding the Fourth Proportional to 1,088.19, 1,621.04 and 1,020.96

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Solution

The fourth proportional to 1,088.19, 1,621.04 and 1,020.96 is: 1,520.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.19 : 1,621.04 = 1,020.96 : x
  2. Step 2: Convert to fraction form
    1,088.19/1,621.04 = 1,020.96/x
  3. Step 3: Cross multiply
    1,088.19x = 1,621.04 × 1,020.96
  4. Step 4: Simplify right side
    1,088.19x = 1,655,017.00
  5. Step 5: Solve for x
    x = 1,655,017.00/1,088.19
  6. Step 6: Final answer
    x = 1,520.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.