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Finding the Fourth Proportional to 4,981.65, 7,477.08 and 2,518.20

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Solution

The fourth proportional to 4,981.65, 7,477.08 and 2,518.20 is: 3,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.65 : 7,477.08 = 2,518.20 : x
  2. Step 2: Convert to fraction form
    4,981.65/7,477.08 = 2,518.20/x
  3. Step 3: Cross multiply
    4,981.65x = 7,477.08 × 2,518.20
  4. Step 4: Simplify right side
    4,981.65x = 18,828,773.41
  5. Step 5: Solve for x
    x = 18,828,773.41/4,981.65
  6. Step 6: Final answer
    x = 3,779.63

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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.