Home / 5,108.85-7,050.96-2,870.91

Finding the Fourth Proportional to 5,108.85, 7,050.96 and 2,870.91

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Solution

The fourth proportional to 5,108.85, 7,050.96 and 2,870.91 is: 3,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.85 : 7,050.96 = 2,870.91 : x
  2. Step 2: Convert to fraction form
    5,108.85/7,050.96 = 2,870.91/x
  3. Step 3: Cross multiply
    5,108.85x = 7,050.96 × 2,870.91
  4. Step 4: Simplify right side
    5,108.85x = 20,242,671.57
  5. Step 5: Solve for x
    x = 20,242,671.57/5,108.85
  6. Step 6: Final answer
    x = 3,962.28

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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.