Home / 2,166.48-2,989.76-1,235.04

Finding the Fourth Proportional to 2,166.48, 2,989.76 and 1,235.04

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Solution

The fourth proportional to 2,166.48, 2,989.76 and 1,235.04 is: 1,704.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.48 : 2,989.76 = 1,235.04 : x
  2. Step 2: Convert to fraction form
    2,166.48/2,989.76 = 1,235.04/x
  3. Step 3: Cross multiply
    2,166.48x = 2,989.76 × 1,235.04
  4. Step 4: Simplify right side
    2,166.48x = 3,692,473.19
  5. Step 5: Solve for x
    x = 3,692,473.19/2,166.48
  6. Step 6: Final answer
    x = 1,704.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.