Home / 2,953.90-4,432.40-1,311.62

Finding the Fourth Proportional to 2,953.90, 4,432.40 and 1,311.62

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Solution

The fourth proportional to 2,953.90, 4,432.40 and 1,311.62 is: 1,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.90 : 4,432.40 = 1,311.62 : x
  2. Step 2: Convert to fraction form
    2,953.90/4,432.40 = 1,311.62/x
  3. Step 3: Cross multiply
    2,953.90x = 4,432.40 × 1,311.62
  4. Step 4: Simplify right side
    2,953.90x = 5,813,617.93
  5. Step 5: Solve for x
    x = 5,813,617.93/2,953.90
  6. Step 6: Final answer
    x = 1,968.12

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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.