Home / 1,861.26-2,566.89-1,418.10

Finding the Fourth Proportional to 1,861.26, 2,566.89 and 1,418.10

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Solution

The fourth proportional to 1,861.26, 2,566.89 and 1,418.10 is: 1,955.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.26 : 2,566.89 = 1,418.10 : x
  2. Step 2: Convert to fraction form
    1,861.26/2,566.89 = 1,418.10/x
  3. Step 3: Cross multiply
    1,861.26x = 2,566.89 × 1,418.10
  4. Step 4: Simplify right side
    1,861.26x = 3,640,106.71
  5. Step 5: Solve for x
    x = 3,640,106.71/1,861.26
  6. Step 6: Final answer
    x = 1,955.72

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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.