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Finding the Fourth Proportional to 3,599.55, 5,398.74 and 1,407.51

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Solution

The fourth proportional to 3,599.55, 5,398.74 and 1,407.51 is: 2,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,599.55 : 5,398.74 = 1,407.51 : x
  2. Step 2: Convert to fraction form
    3,599.55/5,398.74 = 1,407.51/x
  3. Step 3: Cross multiply
    3,599.55x = 5,398.74 × 1,407.51
  4. Step 4: Simplify right side
    3,599.55x = 7,598,780.54
  5. Step 5: Solve for x
    x = 7,598,780.54/3,599.55
  6. Step 6: Final answer
    x = 2,111.04

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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.