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Finding the Fourth Proportional to 3,602.84, 5,406.29 and 1,655.20

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Solution

The fourth proportional to 3,602.84, 5,406.29 and 1,655.20 is: 2,483.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.84 : 5,406.29 = 1,655.20 : x
  2. Step 2: Convert to fraction form
    3,602.84/5,406.29 = 1,655.20/x
  3. Step 3: Cross multiply
    3,602.84x = 5,406.29 × 1,655.20
  4. Step 4: Simplify right side
    3,602.84x = 8,948,455.90
  5. Step 5: Solve for x
    x = 8,948,455.90/3,602.84
  6. Step 6: Final answer
    x = 2,483.72

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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.