Home / 1,854.03-2,561.21-1,439.72

Finding the Fourth Proportional to 1,854.03, 2,561.21 and 1,439.72

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Solution

The fourth proportional to 1,854.03, 2,561.21 and 1,439.72 is: 1,988.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.03 : 2,561.21 = 1,439.72 : x
  2. Step 2: Convert to fraction form
    1,854.03/2,561.21 = 1,439.72/x
  3. Step 3: Cross multiply
    1,854.03x = 2,561.21 × 1,439.72
  4. Step 4: Simplify right side
    1,854.03x = 3,687,405.26
  5. Step 5: Solve for x
    x = 3,687,405.26/1,854.03
  6. Step 6: Final answer
    x = 1,988.86

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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.