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Finding the Fourth Proportional to 2,173.95, 3,260.94 and 530.49

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Solution

The fourth proportional to 2,173.95, 3,260.94 and 530.49 is: 795.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.95 : 3,260.94 = 530.49 : x
  2. Step 2: Convert to fraction form
    2,173.95/3,260.94 = 530.49/x
  3. Step 3: Cross multiply
    2,173.95x = 3,260.94 × 530.49
  4. Step 4: Simplify right side
    2,173.95x = 1,729,896.06
  5. Step 5: Solve for x
    x = 1,729,896.06/2,173.95
  6. Step 6: Final answer
    x = 795.74

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Double scale
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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.