Home / 3,635.04-5,453.64-1,688.40

Finding the Fourth Proportional to 3,635.04, 5,453.64 and 1,688.40

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Solution

The fourth proportional to 3,635.04, 5,453.64 and 1,688.40 is: 2,533.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.04 : 5,453.64 = 1,688.40 : x
  2. Step 2: Convert to fraction form
    3,635.04/5,453.64 = 1,688.40/x
  3. Step 3: Cross multiply
    3,635.04x = 5,453.64 × 1,688.40
  4. Step 4: Simplify right side
    3,635.04x = 9,207,925.78
  5. Step 5: Solve for x
    x = 9,207,925.78/3,635.04
  6. Step 6: Final answer
    x = 2,533.10

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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.