Home / 5,312.07-7,961.67-1,977.62

Finding the Fourth Proportional to 5,312.07, 7,961.67 and 1,977.62

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Solution

The fourth proportional to 5,312.07, 7,961.67 and 1,977.62 is: 2,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.07 : 7,961.67 = 1,977.62 : x
  2. Step 2: Convert to fraction form
    5,312.07/7,961.67 = 1,977.62/x
  3. Step 3: Cross multiply
    5,312.07x = 7,961.67 × 1,977.62
  4. Step 4: Simplify right side
    5,312.07x = 15,745,118.02
  5. Step 5: Solve for x
    x = 15,745,118.02/5,312.07
  6. Step 6: Final answer
    x = 2,964.03

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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.