Home / 5,430.34-7,485.70-4,249.36

Finding the Fourth Proportional to 5,430.34, 7,485.70 and 4,249.36

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Solution

The fourth proportional to 5,430.34, 7,485.70 and 4,249.36 is: 5,857.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.34 : 7,485.70 = 4,249.36 : x
  2. Step 2: Convert to fraction form
    5,430.34/7,485.70 = 4,249.36/x
  3. Step 3: Cross multiply
    5,430.34x = 7,485.70 × 4,249.36
  4. Step 4: Simplify right side
    5,430.34x = 31,809,434.15
  5. Step 5: Solve for x
    x = 31,809,434.15/5,430.34
  6. Step 6: Final answer
    x = 5,857.72

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Half scale
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Double scale
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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.