Home / 4,378.20-6,567.90-1,456.20

Finding the Fourth Proportional to 4,378.20, 6,567.90 and 1,456.20

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Solution

The fourth proportional to 4,378.20, 6,567.90 and 1,456.20 is: 2,184.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.20 : 6,567.90 = 1,456.20 : x
  2. Step 2: Convert to fraction form
    4,378.20/6,567.90 = 1,456.20/x
  3. Step 3: Cross multiply
    4,378.20x = 6,567.90 × 1,456.20
  4. Step 4: Simplify right side
    4,378.20x = 9,564,175.98
  5. Step 5: Solve for x
    x = 9,564,175.98/4,378.20
  6. Step 6: Final answer
    x = 2,184.50

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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.