Home / 3,573.41-4,931.47-2,157.07

Finding the Fourth Proportional to 3,573.41, 4,931.47 and 2,157.07

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Solution

The fourth proportional to 3,573.41, 4,931.47 and 2,157.07 is: 2,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.41 : 4,931.47 = 2,157.07 : x
  2. Step 2: Convert to fraction form
    3,573.41/4,931.47 = 2,157.07/x
  3. Step 3: Cross multiply
    3,573.41x = 4,931.47 × 2,157.07
  4. Step 4: Simplify right side
    3,573.41x = 10,637,508.27
  5. Step 5: Solve for x
    x = 10,637,508.27/3,573.41
  6. Step 6: Final answer
    x = 2,976.85

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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.