Home / 2,899.08-4,000.62-1,572.74

Finding the Fourth Proportional to 2,899.08, 4,000.62 and 1,572.74

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Solution

The fourth proportional to 2,899.08, 4,000.62 and 1,572.74 is: 2,170.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.08 : 4,000.62 = 1,572.74 : x
  2. Step 2: Convert to fraction form
    2,899.08/4,000.62 = 1,572.74/x
  3. Step 3: Cross multiply
    2,899.08x = 4,000.62 × 1,572.74
  4. Step 4: Simplify right side
    2,899.08x = 6,291,935.10
  5. Step 5: Solve for x
    x = 6,291,935.10/2,899.08
  6. Step 6: Final answer
    x = 2,170.32

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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.