Home / 2,905.02-4,357.53-713.79

Finding the Fourth Proportional to 2,905.02, 4,357.53 and 713.79

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Solution

The fourth proportional to 2,905.02, 4,357.53 and 713.79 is: 1,070.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.02 : 4,357.53 = 713.79 : x
  2. Step 2: Convert to fraction form
    2,905.02/4,357.53 = 713.79/x
  3. Step 3: Cross multiply
    2,905.02x = 4,357.53 × 713.79
  4. Step 4: Simplify right side
    2,905.02x = 3,110,361.34
  5. Step 5: Solve for x
    x = 3,110,361.34/2,905.02
  6. Step 6: Final answer
    x = 1,070.69

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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.