Home / 4,869.90-6,720.58-2,981.44

Finding the Fourth Proportional to 4,869.90, 6,720.58 and 2,981.44

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Solution

The fourth proportional to 4,869.90, 6,720.58 and 2,981.44 is: 4,114.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.90 : 6,720.58 = 2,981.44 : x
  2. Step 2: Convert to fraction form
    4,869.90/6,720.58 = 2,981.44/x
  3. Step 3: Cross multiply
    4,869.90x = 6,720.58 × 2,981.44
  4. Step 4: Simplify right side
    4,869.90x = 20,037,006.04
  5. Step 5: Solve for x
    x = 20,037,006.04/4,869.90
  6. Step 6: Final answer
    x = 4,114.46

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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.