Home / 1,826.79-2,740.23-528.21

Finding the Fourth Proportional to 1,826.79, 2,740.23 and 528.21

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Solution

The fourth proportional to 1,826.79, 2,740.23 and 528.21 is: 792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.79 : 2,740.23 = 528.21 : x
  2. Step 2: Convert to fraction form
    1,826.79/2,740.23 = 528.21/x
  3. Step 3: Cross multiply
    1,826.79x = 2,740.23 × 528.21
  4. Step 4: Simplify right side
    1,826.79x = 1,447,416.89
  5. Step 5: Solve for x
    x = 1,447,416.89/1,826.79
  6. Step 6: Final answer
    x = 792.33

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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.