Home / 5,781.40-8,673.30-1,886.10

Finding the Fourth Proportional to 5,781.40, 8,673.30 and 1,886.10

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Solution

The fourth proportional to 5,781.40, 8,673.30 and 1,886.10 is: 2,829.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,781.40 : 8,673.30 = 1,886.10 : x
  2. Step 2: Convert to fraction form
    5,781.40/8,673.30 = 1,886.10/x
  3. Step 3: Cross multiply
    5,781.40x = 8,673.30 × 1,886.10
  4. Step 4: Simplify right side
    5,781.40x = 16,358,711.13
  5. Step 5: Solve for x
    x = 16,358,711.13/5,781.40
  6. Step 6: Final answer
    x = 2,829.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.