Home / 5,153.12-7,730.81-1,644.20

Finding the Fourth Proportional to 5,153.12, 7,730.81 and 1,644.20

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Solution

The fourth proportional to 5,153.12, 7,730.81 and 1,644.20 is: 2,466.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.12 : 7,730.81 = 1,644.20 : x
  2. Step 2: Convert to fraction form
    5,153.12/7,730.81 = 1,644.20/x
  3. Step 3: Cross multiply
    5,153.12x = 7,730.81 × 1,644.20
  4. Step 4: Simplify right side
    5,153.12x = 12,710,950.93
  5. Step 5: Solve for x
    x = 12,710,950.93/5,153.12
  6. Step 6: Final answer
    x = 2,466.65

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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.