Home / 1,666.35-2,500.98-972.06

Finding the Fourth Proportional to 1,666.35, 2,500.98 and 972.06

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Solution

The fourth proportional to 1,666.35, 2,500.98 and 972.06 is: 1,458.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.35 : 2,500.98 = 972.06 : x
  2. Step 2: Convert to fraction form
    1,666.35/2,500.98 = 972.06/x
  3. Step 3: Cross multiply
    1,666.35x = 2,500.98 × 972.06
  4. Step 4: Simplify right side
    1,666.35x = 2,431,102.62
  5. Step 5: Solve for x
    x = 2,431,102.62/1,666.35
  6. Step 6: Final answer
    x = 1,458.94

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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.