Home / 5,316.80-7,338.06-3,078.28

Finding the Fourth Proportional to 5,316.80, 7,338.06 and 3,078.28

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Solution

The fourth proportional to 5,316.80, 7,338.06 and 3,078.28 is: 4,248.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.80 : 7,338.06 = 3,078.28 : x
  2. Step 2: Convert to fraction form
    5,316.80/7,338.06 = 3,078.28/x
  3. Step 3: Cross multiply
    5,316.80x = 7,338.06 × 3,078.28
  4. Step 4: Simplify right side
    5,316.80x = 22,588,603.34
  5. Step 5: Solve for x
    x = 22,588,603.34/5,316.80
  6. Step 6: Final answer
    x = 4,248.53

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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.