Home / 4,977.72-6,869.67-2,740.02

Finding the Fourth Proportional to 4,977.72, 6,869.67 and 2,740.02

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Solution

The fourth proportional to 4,977.72, 6,869.67 and 2,740.02 is: 3,781.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.72 : 6,869.67 = 2,740.02 : x
  2. Step 2: Convert to fraction form
    4,977.72/6,869.67 = 2,740.02/x
  3. Step 3: Cross multiply
    4,977.72x = 6,869.67 × 2,740.02
  4. Step 4: Simplify right side
    4,977.72x = 18,822,985.14
  5. Step 5: Solve for x
    x = 18,822,985.14/4,977.72
  6. Step 6: Final answer
    x = 3,781.45

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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.