Home / 5,617.80-8,424.27-4,320.18

Finding the Fourth Proportional to 5,617.80, 8,424.27 and 4,320.18

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Solution

The fourth proportional to 5,617.80, 8,424.27 and 4,320.18 is: 6,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.80 : 8,424.27 = 4,320.18 : x
  2. Step 2: Convert to fraction form
    5,617.80/8,424.27 = 4,320.18/x
  3. Step 3: Cross multiply
    5,617.80x = 8,424.27 × 4,320.18
  4. Step 4: Simplify right side
    5,617.80x = 36,394,362.77
  5. Step 5: Solve for x
    x = 36,394,362.77/5,617.80
  6. Step 6: Final answer
    x = 6,478.40

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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.