Home / 4,089.18-5,642.91-2,320.71

Finding the Fourth Proportional to 4,089.18, 5,642.91 and 2,320.71

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Solution

The fourth proportional to 4,089.18, 5,642.91 and 2,320.71 is: 3,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.18 : 5,642.91 = 2,320.71 : x
  2. Step 2: Convert to fraction form
    4,089.18/5,642.91 = 2,320.71/x
  3. Step 3: Cross multiply
    4,089.18x = 5,642.91 × 2,320.71
  4. Step 4: Simplify right side
    4,089.18x = 13,095,557.67
  5. Step 5: Solve for x
    x = 13,095,557.67/4,089.18
  6. Step 6: Final answer
    x = 3,202.49

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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.