Home / 2,000.23-2,985.07-1,781.53

Finding the Fourth Proportional to 2,000.23, 2,985.07 and 1,781.53

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Solution

The fourth proportional to 2,000.23, 2,985.07 and 1,781.53 is: 2,658.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,000.23 : 2,985.07 = 1,781.53 : x
  2. Step 2: Convert to fraction form
    2,000.23/2,985.07 = 1,781.53/x
  3. Step 3: Cross multiply
    2,000.23x = 2,985.07 × 1,781.53
  4. Step 4: Simplify right side
    2,000.23x = 5,317,991.76
  5. Step 5: Solve for x
    x = 5,317,991.76/2,000.23
  6. Step 6: Final answer
    x = 2,658.69

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1.5x scale

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.