Home / 3,525.80-5,288.34-928.76

Finding the Fourth Proportional to 3,525.80, 5,288.34 and 928.76

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Solution

The fourth proportional to 3,525.80, 5,288.34 and 928.76 is: 1,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,525.80 : 5,288.34 = 928.76 : x
  2. Step 2: Convert to fraction form
    3,525.80/5,288.34 = 928.76/x
  3. Step 3: Cross multiply
    3,525.80x = 5,288.34 × 928.76
  4. Step 4: Simplify right side
    3,525.80x = 4,911,598.66
  5. Step 5: Solve for x
    x = 4,911,598.66/3,525.80
  6. Step 6: Final answer
    x = 1,393.05

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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.