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Finding the Fourth Proportional to 3,888.95, 5,834.57 and 1,666.58

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Solution

The fourth proportional to 3,888.95, 5,834.57 and 1,666.58 is: 2,500.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.95 : 5,834.57 = 1,666.58 : x
  2. Step 2: Convert to fraction form
    3,888.95/5,834.57 = 1,666.58/x
  3. Step 3: Cross multiply
    3,888.95x = 5,834.57 × 1,666.58
  4. Step 4: Simplify right side
    3,888.95x = 9,723,740.16
  5. Step 5: Solve for x
    x = 9,723,740.16/3,888.95
  6. Step 6: Final answer
    x = 2,500.35

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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.