Home / 5,389.77-7,434.66-3,290.25

Finding the Fourth Proportional to 5,389.77, 7,434.66 and 3,290.25

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Solution

The fourth proportional to 5,389.77, 7,434.66 and 3,290.25 is: 4,538.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.77 : 7,434.66 = 3,290.25 : x
  2. Step 2: Convert to fraction form
    5,389.77/7,434.66 = 3,290.25/x
  3. Step 3: Cross multiply
    5,389.77x = 7,434.66 × 3,290.25
  4. Step 4: Simplify right side
    5,389.77x = 24,461,890.07
  5. Step 5: Solve for x
    x = 24,461,890.07/5,389.77
  6. Step 6: Final answer
    x = 4,538.58

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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.