Home / 6,555.36-9,045.60-3,721.70

Finding the Fourth Proportional to 6,555.36, 9,045.60 and 3,721.70

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Solution

The fourth proportional to 6,555.36, 9,045.60 and 3,721.70 is: 5,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.36 : 9,045.60 = 3,721.70 : x
  2. Step 2: Convert to fraction form
    6,555.36/9,045.60 = 3,721.70/x
  3. Step 3: Cross multiply
    6,555.36x = 9,045.60 × 3,721.70
  4. Step 4: Simplify right side
    6,555.36x = 33,665,009.52
  5. Step 5: Solve for x
    x = 33,665,009.52/6,555.36
  6. Step 6: Final answer
    x = 5,135.49

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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.