Home / 7,051.40-10,577.10-2,121.80

Finding the Fourth Proportional to 7,051.40, 10,577.10 and 2,121.80

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Solution

The fourth proportional to 7,051.40, 10,577.10 and 2,121.80 is: 3,182.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.40 : 10,577.10 = 2,121.80 : x
  2. Step 2: Convert to fraction form
    7,051.40/10,577.10 = 2,121.80/x
  3. Step 3: Cross multiply
    7,051.40x = 10,577.10 × 2,121.80
  4. Step 4: Simplify right side
    7,051.40x = 22,442,490.78
  5. Step 5: Solve for x
    x = 22,442,490.78/7,051.40
  6. Step 6: Final answer
    x = 3,182.70

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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.