Home / 2,127.40-3,189.20-1,030.24

Finding the Fourth Proportional to 2,127.40, 3,189.20 and 1,030.24

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Solution

The fourth proportional to 2,127.40, 3,189.20 and 1,030.24 is: 1,544.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.40 : 3,189.20 = 1,030.24 : x
  2. Step 2: Convert to fraction form
    2,127.40/3,189.20 = 1,030.24/x
  3. Step 3: Cross multiply
    2,127.40x = 3,189.20 × 1,030.24
  4. Step 4: Simplify right side
    2,127.40x = 3,285,641.41
  5. Step 5: Solve for x
    x = 3,285,641.41/2,127.40
  6. Step 6: Final answer
    x = 1,544.44

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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.