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Finding the Fourth Proportional to 2,051.46, 3,077.16 and 955.20

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Solution

The fourth proportional to 2,051.46, 3,077.16 and 955.20 is: 1,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.46 : 3,077.16 = 955.20 : x
  2. Step 2: Convert to fraction form
    2,051.46/3,077.16 = 955.20/x
  3. Step 3: Cross multiply
    2,051.46x = 3,077.16 × 955.20
  4. Step 4: Simplify right side
    2,051.46x = 2,939,303.23
  5. Step 5: Solve for x
    x = 2,939,303.23/2,051.46
  6. Step 6: Final answer
    x = 1,432.79

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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.