Home / 4,617.80-6,393.30-4,387.40

Finding the Fourth Proportional to 4,617.80, 6,393.30 and 4,387.40

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Solution

The fourth proportional to 4,617.80, 6,393.30 and 4,387.40 is: 6,074.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,617.80 : 6,393.30 = 4,387.40 : x
  2. Step 2: Convert to fraction form
    4,617.80/6,393.30 = 4,387.40/x
  3. Step 3: Cross multiply
    4,617.80x = 6,393.30 × 4,387.40
  4. Step 4: Simplify right side
    4,617.80x = 28,049,964.42
  5. Step 5: Solve for x
    x = 28,049,964.42/4,617.80
  6. Step 6: Final answer
    x = 6,074.31

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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.