Home / 4,315.40-6,474.02-1,393.60

Finding the Fourth Proportional to 4,315.40, 6,474.02 and 1,393.60

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Solution

The fourth proportional to 4,315.40, 6,474.02 and 1,393.60 is: 2,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,315.40 : 6,474.02 = 1,393.60 : x
  2. Step 2: Convert to fraction form
    4,315.40/6,474.02 = 1,393.60/x
  3. Step 3: Cross multiply
    4,315.40x = 6,474.02 × 1,393.60
  4. Step 4: Simplify right side
    4,315.40x = 9,022,194.27
  5. Step 5: Solve for x
    x = 9,022,194.27/4,315.40
  6. Step 6: Final answer
    x = 2,090.70

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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.