Home / 6,388.80-8,816.45-3,594.30

Finding the Fourth Proportional to 6,388.80, 8,816.45 and 3,594.30

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Solution

The fourth proportional to 6,388.80, 8,816.45 and 3,594.30 is: 4,960.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.80 : 8,816.45 = 3,594.30 : x
  2. Step 2: Convert to fraction form
    6,388.80/8,816.45 = 3,594.30/x
  3. Step 3: Cross multiply
    6,388.80x = 8,816.45 × 3,594.30
  4. Step 4: Simplify right side
    6,388.80x = 31,688,966.24
  5. Step 5: Solve for x
    x = 31,688,966.24/6,388.80
  6. Step 6: Final answer
    x = 4,960.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.