Home / 2,656.20-3,666.42-1,870.44

Finding the Fourth Proportional to 2,656.20, 3,666.42 and 1,870.44

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Solution

The fourth proportional to 2,656.20, 3,666.42 and 1,870.44 is: 2,581.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.20 : 3,666.42 = 1,870.44 : x
  2. Step 2: Convert to fraction form
    2,656.20/3,666.42 = 1,870.44/x
  3. Step 3: Cross multiply
    2,656.20x = 3,666.42 × 1,870.44
  4. Step 4: Simplify right side
    2,656.20x = 6,857,818.62
  5. Step 5: Solve for x
    x = 6,857,818.62/2,656.20
  6. Step 6: Final answer
    x = 2,581.82

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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.