Home / 2,900.15-4,002.23-1,573.86

Finding the Fourth Proportional to 2,900.15, 4,002.23 and 1,573.86

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Solution

The fourth proportional to 2,900.15, 4,002.23 and 1,573.86 is: 2,171.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.15 : 4,002.23 = 1,573.86 : x
  2. Step 2: Convert to fraction form
    2,900.15/4,002.23 = 1,573.86/x
  3. Step 3: Cross multiply
    2,900.15x = 4,002.23 × 1,573.86
  4. Step 4: Simplify right side
    2,900.15x = 6,298,949.71
  5. Step 5: Solve for x
    x = 6,298,949.71/2,900.15
  6. Step 6: Final answer
    x = 2,171.94

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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.