Home / 5,106.06-7,654.32-1,988.10

Finding the Fourth Proportional to 5,106.06, 7,654.32 and 1,988.10

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Solution

The fourth proportional to 5,106.06, 7,654.32 and 1,988.10 is: 2,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.06 : 7,654.32 = 1,988.10 : x
  2. Step 2: Convert to fraction form
    5,106.06/7,654.32 = 1,988.10/x
  3. Step 3: Cross multiply
    5,106.06x = 7,654.32 × 1,988.10
  4. Step 4: Simplify right side
    5,106.06x = 15,217,553.59
  5. Step 5: Solve for x
    x = 15,217,553.59/5,106.06
  6. Step 6: Final answer
    x = 2,980.29

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1.5x scale

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.