Home / 3,089.07-4,632.39-1,140.21

Finding the Fourth Proportional to 3,089.07, 4,632.39 and 1,140.21

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Solution

The fourth proportional to 3,089.07, 4,632.39 and 1,140.21 is: 1,709.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.07 : 4,632.39 = 1,140.21 : x
  2. Step 2: Convert to fraction form
    3,089.07/4,632.39 = 1,140.21/x
  3. Step 3: Cross multiply
    3,089.07x = 4,632.39 × 1,140.21
  4. Step 4: Simplify right side
    3,089.07x = 5,281,897.40
  5. Step 5: Solve for x
    x = 5,281,897.40/3,089.07
  6. Step 6: Final answer
    x = 1,709.87

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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.