Home / 5,460.30-8,190.45-5,298.30

Finding the Fourth Proportional to 5,460.30, 8,190.45 and 5,298.30

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Solution

The fourth proportional to 5,460.30, 8,190.45 and 5,298.30 is: 7,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,460.30 : 8,190.45 = 5,298.30 : x
  2. Step 2: Convert to fraction form
    5,460.30/8,190.45 = 5,298.30/x
  3. Step 3: Cross multiply
    5,460.30x = 8,190.45 × 5,298.30
  4. Step 4: Simplify right side
    5,460.30x = 43,395,461.24
  5. Step 5: Solve for x
    x = 43,395,461.24/5,460.30
  6. Step 6: Final answer
    x = 7,947.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.