Home / 5,108.96-7,050.40-2,870.94

Finding the Fourth Proportional to 5,108.96, 7,050.40 and 2,870.94

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Solution

The fourth proportional to 5,108.96, 7,050.40 and 2,870.94 is: 3,961.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.96 : 7,050.40 = 2,870.94 : x
  2. Step 2: Convert to fraction form
    5,108.96/7,050.40 = 2,870.94/x
  3. Step 3: Cross multiply
    5,108.96x = 7,050.40 × 2,870.94
  4. Step 4: Simplify right side
    5,108.96x = 20,241,275.38
  5. Step 5: Solve for x
    x = 20,241,275.38/5,108.96
  6. Step 6: Final answer
    x = 3,961.92

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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.