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Finding the Fourth Proportional to 1,702.37, 2,552.41 and 661.72

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Solution

The fourth proportional to 1,702.37, 2,552.41 and 661.72 is: 992.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.37 : 2,552.41 = 661.72 : x
  2. Step 2: Convert to fraction form
    1,702.37/2,552.41 = 661.72/x
  3. Step 3: Cross multiply
    1,702.37x = 2,552.41 × 661.72
  4. Step 4: Simplify right side
    1,702.37x = 1,688,979.98
  5. Step 5: Solve for x
    x = 1,688,979.98/1,702.37
  6. Step 6: Final answer
    x = 992.14

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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.