Home / 3,242.10-4,474.26-1,915.86

Finding the Fourth Proportional to 3,242.10, 4,474.26 and 1,915.86

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Solution

The fourth proportional to 3,242.10, 4,474.26 and 1,915.86 is: 2,643.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.10 : 4,474.26 = 1,915.86 : x
  2. Step 2: Convert to fraction form
    3,242.10/4,474.26 = 1,915.86/x
  3. Step 3: Cross multiply
    3,242.10x = 4,474.26 × 1,915.86
  4. Step 4: Simplify right side
    3,242.10x = 8,572,055.76
  5. Step 5: Solve for x
    x = 8,572,055.76/3,242.10
  6. Step 6: Final answer
    x = 2,643.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.