Home / 4,671.30-7,002.90-2,820.45

Finding the Fourth Proportional to 4,671.30, 7,002.90 and 2,820.45

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Solution

The fourth proportional to 4,671.30, 7,002.90 and 2,820.45 is: 4,228.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671.30 : 7,002.90 = 2,820.45 : x
  2. Step 2: Convert to fraction form
    4,671.30/7,002.90 = 2,820.45/x
  3. Step 3: Cross multiply
    4,671.30x = 7,002.90 × 2,820.45
  4. Step 4: Simplify right side
    4,671.30x = 19,751,329.31
  5. Step 5: Solve for x
    x = 19,751,329.31/4,671.30
  6. Step 6: Final answer
    x = 4,228.23

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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.