Home / 3,525.48-5,288.27-928.40

Finding the Fourth Proportional to 3,525.48, 5,288.27 and 928.40

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Solution

The fourth proportional to 3,525.48, 5,288.27 and 928.40 is: 1,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,525.48 : 5,288.27 = 928.40 : x
  2. Step 2: Convert to fraction form
    3,525.48/5,288.27 = 928.40/x
  3. Step 3: Cross multiply
    3,525.48x = 5,288.27 × 928.40
  4. Step 4: Simplify right side
    3,525.48x = 4,909,598.78
  5. Step 5: Solve for x
    x = 4,909,598.78/3,525.48
  6. Step 6: Final answer
    x = 1,392.60

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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.