Home / 3,538.75-5,303.08-1,688.35

Finding the Fourth Proportional to 3,538.75, 5,303.08 and 1,688.35

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Solution

The fourth proportional to 3,538.75, 5,303.08 and 1,688.35 is: 2,530.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.75 : 5,303.08 = 1,688.35 : x
  2. Step 2: Convert to fraction form
    3,538.75/5,303.08 = 1,688.35/x
  3. Step 3: Cross multiply
    3,538.75x = 5,303.08 × 1,688.35
  4. Step 4: Simplify right side
    3,538.75x = 8,953,455.12
  5. Step 5: Solve for x
    x = 8,953,455.12/3,538.75
  6. Step 6: Final answer
    x = 2,530.12

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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.