Home / 2,098.70-2,895.51-1,213.87

Finding the Fourth Proportional to 2,098.70, 2,895.51 and 1,213.87

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Solution

The fourth proportional to 2,098.70, 2,895.51 and 1,213.87 is: 1,674.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,098.70 : 2,895.51 = 1,213.87 : x
  2. Step 2: Convert to fraction form
    2,098.70/2,895.51 = 1,213.87/x
  3. Step 3: Cross multiply
    2,098.70x = 2,895.51 × 1,213.87
  4. Step 4: Simplify right side
    2,098.70x = 3,514,772.72
  5. Step 5: Solve for x
    x = 3,514,772.72/2,098.70
  6. Step 6: Final answer
    x = 1,674.74

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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.