Home / 7,803.45-11,705.16-2,870.94

Finding the Fourth Proportional to 7,803.45, 11,705.16 and 2,870.94

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Solution

The fourth proportional to 7,803.45, 11,705.16 and 2,870.94 is: 4,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.45 : 11,705.16 = 2,870.94 : x
  2. Step 2: Convert to fraction form
    7,803.45/11,705.16 = 2,870.94/x
  3. Step 3: Cross multiply
    7,803.45x = 11,705.16 × 2,870.94
  4. Step 4: Simplify right side
    7,803.45x = 33,604,812.05
  5. Step 5: Solve for x
    x = 33,604,812.05/7,803.45
  6. Step 6: Final answer
    x = 4,306.40

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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.