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Finding the Fourth Proportional to 1,602.02, 2,210.01 and 1,247.32

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Solution

The fourth proportional to 1,602.02, 2,210.01 and 1,247.32 is: 1,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602.02 : 2,210.01 = 1,247.32 : x
  2. Step 2: Convert to fraction form
    1,602.02/2,210.01 = 1,247.32/x
  3. Step 3: Cross multiply
    1,602.02x = 2,210.01 × 1,247.32
  4. Step 4: Simplify right side
    1,602.02x = 2,756,575.33
  5. Step 5: Solve for x
    x = 2,756,575.33/1,602.02
  6. Step 6: Final answer
    x = 1,720.68

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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.