Home / 3,599.48-5,395.62-1,405.20

Finding the Fourth Proportional to 3,599.48, 5,395.62 and 1,405.20

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Solution

The fourth proportional to 3,599.48, 5,395.62 and 1,405.20 is: 2,106.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,599.48 : 5,395.62 = 1,405.20 : x
  2. Step 2: Convert to fraction form
    3,599.48/5,395.62 = 1,405.20/x
  3. Step 3: Cross multiply
    3,599.48x = 5,395.62 × 1,405.20
  4. Step 4: Simplify right side
    3,599.48x = 7,581,925.22
  5. Step 5: Solve for x
    x = 7,581,925.22/3,599.48
  6. Step 6: Final answer
    x = 2,106.39

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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.